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The list of adjectives for the color blue is: 1. Azure 2. Oceanic 3. Turquoise 4. Steely 5. Electric 6. Royal 7. Cobalt 8. Cerulean 9. Sapphire 10. Lapis

Generate a list of 10 adjectives that describe the color blue.

The Battle of Gettysburg was an important battle during the American Civil War, fought between the Union and the Confederate armies in Gettysburg, Pennsylvania on July 1–3, 1863. It was a pivotal battle which resulted in heavy losses; the Union lost an estimated 23,000 men, while the Confederate was estimated to be 28,000 men. The victory ensured that the Union forces maintained control of the North, while the Confederate forces were forced to retreat. In addition, it marked the end of General Robert E. Lee’s invasion of the North, thus ending the Confederates' hopes of winning the war. The Battle of Gettysburg was considered to be a major turning point in the Civil War, and is often referred to as one of the bloodiest battles in American history.

Explain the significance of the Battle of Gettysburg.

The array after deleting the specified elements is: [1, 3, 6, 7].

Delete the 2nd, 4th, and 5th element of the following array: [1, 2, 3, 4, 5, 6, 7].

Using a distributed database has many advantages, such as increased speed and flexibility, improved scalability and availability, and improved fault tolerance. Firstly, distributed databases allow users to access data faster. This is because data is broken up into smaller chunks and stored across multiple servers, allowing faster access and retrieval. This increases overall performance and user satisfaction. Secondly, distributed databases provide improved scalability and availability. As data is divided across several servers, it can easily be scaled up as the amount of data increases without having to start from scratch. Additionally, if one server goes down, other servers will continue to operate so that data is still available. This improves system reliability and data safety. Finally, distributed databases have improved fault tolerance. This is because the data is mirrored across multiple servers which reduces the risk of data getting lost or corrupted due to the failure of a single server. With this system in place, even if one server fails, the data will still be safe and accessible.

Name two advantages of using a distributed database.

A chatbot would be more useful than a human assistant in situations that require quick responses or large-scale customer support, such as customer queries, sales inquiries, or financial transactions. Chatbots can provide immediate, accurate, and personalized responses, helping to automate customer service tasks, allowing users to get the information they need quickly and conveniently. For example, a chatbot could be used in a customer service setting to ask the customer their query, collect all the necessary data from the customer, and then provide the customer with a solution or direct them to the proper channels for further support. This saves time for both the customer and the human customer service representative, as the chatbot can provide a quicker, more effective response to the customer query. In addition, chatbots can also be used for large-scale customer support and marketing. For example, a chatbot can be used to send targeted promotions or personalized messages to customers, helping businesses to reach their customers quickly and easily, without having to use a large customer service staff. This can help businesses to perfect their customer outreach strategies and enhance customer service.

Describe a situation where a chatbot would be more useful than a human assistant.

Colleague 1: Hey, how's the project going? Colleague 2: Hey there! It's going well. I've finished the first two drafts and I'm now doing some small tweaks. What about you? Colleague 1: I'm almost done too. Just have to make sure all the contents are organized. Should be done in a few days. Colleague 2: Alright, that sounds great! I'll check my work with you when you're done and make any final changes. Colleague 1: Sounds like a plan. We should get this project finished in no time.

Create a dialogue between two colleagues discussing a project they are working on.

1. Italy (54 sites) 2. China (52 sites) 3. Spain (48 sites) 4. France (45 sites) 5. Germany (43 sites)

Name five countries with the most number of UNESCO World Heritage sites.

Ingredients: 1 onion, diced; 2 cloves garlic, minced; 2 tablespoons olive oil; 28 ounces canned crushed tomatoes; 2 cups vegetable or chicken stock; 1 teaspoon dried oregano; 1 teaspoon dried basil; 1/2 teaspoon sugar; 1/2 teaspoon salt; 1/4 teaspoon ground black pepper; 1/2 cup heavy cream. Instructions: 1. Heat the olive oil in a large pot over medium heat. Add the onion and garlic and cook until soft, about 3 minutes. 2. Add the crushed tomatoes, stock, oregano, basil, sugar, salt, and pepper. Bring to a simmer and cook for 15 minutes. 3. Remove from heat and stir in the cream. 4. Puree with an immersion blender or in two batches in a blender until smooth. 5. Return to pot and bring to a simmer if necessary. Serve hot.

Create a recipe for a Creamy Tomato Soup.

The United States operates under a mixed economy, which is a system that combines free-market capitalism with governmental, economic regulations. This system allows businesses to compete in a free, competitive market while protecting consumers and providing employment and safety regulations. Additionally, the government provides social services, including education, health care and infrastructure. In this way, it seeks to balance the needs of both the market and society.

Describe the economic system of the United States.

The bridge should be designed with the correct engineering and materials. Considerations should include the size and weight of the bridge, the location of the two islands, environmental factors, and the types of materials best suited for construction in the given location. For example, a floating bridge is best suited for watery areas, while a steel bridge is recommended for areas with higher traffic. Careful planning, engineering, and construction will help ensure the bridge is secure, safe, and durable.

Build a bridge between two islands.

Name | Net Worth (USD) ------------------------------|----------------- Jeff Bezos | 179.3 billion Bill Gates | 128.3 billion Bernard Arnault | 113.7 billion Warren Buffett | 107.5 billion Mark Zuckerberg | 84.8 billion Amancio Ortega | 83.7 billion Larry Ellison | 72.7 billion Larry Page | 57 billion Steve Ballmer | 50.5 billion Mukesh Ambani | 50.5 billion

Create a table of ten of the world's wealthiest people.

The sorted numbers are: 8, 11, 22, 47. As such, the median is (11 + 22) / 2 = 16.5

Determine the median of the following group of numbers:

8, 22, 11, 47

The temperate forest biome experiences four distinct seasons--spring, summer, autumn, and winter. During the spring, the weather is typically warm, rainy, and mild. The summer brings hot temperatures and plenty of sunshine. The fall brings cooler temperatures and increased precipitation. Lastly, the winter is typically cold and rainy. The vegetation in these forests is also largely influenced by the change in seasons. Many plants and animals will flourish in the spring, while some may go dormant in the summer or winter.

Tell me about the seasons in the temperate forest biome.

11 inches

Convert 28 cm to inches.

Tomorrow in Los Angeles is expected to be mostly sunny with a high of 80 degrees and a low of 65 degrees.

Predict the weather in Los Angeles tomorrow.

For a budget-friendly Thanksgiving meal, plan to serve the traditional holiday favorites in an economical way. Begin with stuffing, mashed potatoes, and gravy, then include simple dishes like green beans, corn, cranberry sauce, and rolls. For a tasty dessert, consider a homemade pumpkin or pecan pie. When possible, try to buy seasonal ingredients, and be sure to plan ahead to minimize food waste.

Create a plan for a budget-friendly Thanksgiving meal.

X-Y-L-O-P-H-O-N-E

Spell the word "xylophone".

1. Leonardo da Vinci – An Italian Renaissance polymath, known for his masterful artworks. 2. Michelangelo – A sculptor and painter known for creating magnificent frescoes and statues. 3. Rembrandt – A Dutch painter, draughtsman and printmaker and one of the most important figures in art history. 4. Pablo Picasso – A renowned Spanish painter, sculptor and ceramicist, who revolutionized art in the 20th century. 5. Vincent van Gogh – A Post-Impressionist painter, whose fame reached its peak after his death.

Create a list of five influential people in the given field, along with a brief description of each person.

Art

The applicable machine learning technique for this task would be a Convolutional Neural Network (CNN). CNNs are typically used for image classification tasks and are able to detect patterns in visual data.

Identify what type of machine learning technique would be applicable for the given task description.

Given a large dataset of images, create a model that can accurately classify the images.

The program can be improved by increasing the resolution of the generated images. This can be achieved by adding more layers in the deep learning model and increasing the size of the input image. Additionally, the parameters of the deep learning model, such as learning rate and optimizer – can be fine-tuned to get better results.

Suggest how to improve the execution of a program given the demo results.

The program is supposed to generate images from sketch inputs, but the published results are low-resolution and have some blurred lines when compared to the original sketch.

The United Nations is taking its climate initiatives seriously in the year 2025 and is working hard to reduce its carbon emissions. To achieve this goal, the organization is taking various steps such as encouraging the adoption of renewable sources of energy, introducing energy-saving measures in buildings and factories, and promoting sustainable agricultural practices across the globe. Furthermore, the UN is making use of the latest technological innovations such as electric vehicles, efficient air conditioning systems, and effective waste management systems to reduce its greenhouse gas emissions by 50%.

Generate a paragraph based on the given information.

In the year 2025, the United Nations is working hard to reduce its carbon emissions by 50%.

Pigeon – Bird Duck – Bird Swallow – Bird

Classify the given items according to their family.

Pigeon, Duck, Swallow

The sentence has a grammatical error, as ‘these’ should be followed by a singular noun or pronoun. The correct sentence would be: This type of problem is difficult to solve.

Analyze the given sentence and identify its grammatical errors, if any.

These type of problems are difficult to solve.

The concept behind the statement is generosity and altruism.

Identify the concept behind the given statement.

It's better to give than receive.

Clean your room.

Transform the given statement into an imperative one.

I would like you to clean your room.

An example of generosity would be someone who volunteers their time to help out at a charity.

Suggest an example that best represents the given concept.

Generosity

It appears that the situation will likely be deteriorating further.

Edit the sentence to make formal.

It looks altogether like the situation will be getting worse.

a. Set a pointer low to the first element in the array b. Set a pointer high to the last element in the array c. While the low pointer is less than the high pointer d. If the element at the low pointer is higher than the element at the high pointer i. Swap the elements ii. Increment the low pointer by 1 iii. Decrement the high pointer by 1 e. Repeat step c until the low pointer is equal or higher than the high pointer f. Sort the elements in the subarray between the two pointers using the same procedure g. Repeat until the subarray is fully sorted

Generate a pseudocode for sorting an array.

I'd like to book a flight from Boston to Miami for June 9th.

Ask the assistant to book a flight from Boston to Miami for June 9th.

The author of the book "The Cat in the Hat" is Dr. Seuss.

Find the name of the author of this book.

Book: The Cat in the Hat

Affection.

Give me a synonym for the word 'love'.

The document now includes the text: "It is clear that the current economic crisis has impacted a large number of people."

Add the following text to the document.

Text: It is clear that the current economic crisis has impacted a large number of people.

I. Introduction A. Definition of Technology B. Impact of Technology on Society II. Effects of Technology A. Positive Effects B. Negative Effects III. Conclusion A. Summary of the Impact B. Recommendations

Create a topic outline for the essay.

Essay topic: Technology and its Impact on Society.

Captain Ahab and Ishmael.

Name two characters in the novel Moby Dick.

font-size: 20px;

Give me a CSS code to make the font size 20px.

The entire article excluding the paragraph that does not belong.

Delete the paragraph from this 1000-word article that does not belong.

The entire article

A neural network is a computer system modeled on the human brain and nervous system. It consists of a network of neurons connected via synapses, which are constantly exchanging information in the form of electrical signals. These networks have the ability to learn by adjusting connections and assigning weights to inputs in order to predict output based on prior experience. Neural networks are used in a variety of applications such as speech recognition, image recognition, natural language processing, machine learning, and forecasting.

Define what a neural network is.

The grammar for "a milkshake" is: Article (a) + Noun (milkshake) -> A milkshake.

Create a grammar for the phrase "a milkshake".

Amazing news! An animal rescue in Thailand has successfully freed 63 bears from animal trafficking. The rescued bears will now receive the proper care and attention they need. #animalrescue #animalrights #Thailand

Write a tweet summarizing this article about an animal rescue in Thailand.

The article

Dr. John was a scientist working in his lab, surrounded by beakers and test tubes bubbling with mysterious liquids. He had been working on a new project, hoping to create a revolutionary new drug that would cure various diseases. He had spent months testing different combinations of ingredients, and finally he had hit upon the perfect formula. As the potion bubbled in the test tube, his excitement was palpable. He barely slept that night, eagerly anticipating the results of his experiment. The next day, sure enough, his concoction had succeeded in creating the drug he had been trying for! He had finally achieved a truly remarkable accomplishment.

Generate a short story about a scientist in a lab.

I would like to gain knowledge regarding this newly released application.

Rewrite the following sentence in a more formal way: "I want to learn about this new app."

Why did the chicken cross the playground? To get to the other Slide!

Generate a funny joke.

"Decoding the Future: Understanding the Power of Artificial Intelligence"

Come up with an interesting title for this article about artificial intelligence.

The article

1. Implement effective recycling and composting programs. 2. Increase public awareness and education about plastic waste. 3. Promote reuseable and biodegradable alternatives to plastic.

Provide 3 potential solutions to reduce the amount of plastic waste.

Peanut Butter and Banana Toast. Simply toast two slices of your favorite bread and spread each slice with peanut butter and a layer of sliced banana.

Suggest a snack that you can make in under 5 minutes.

M My Mars V Venus E Earth M Mercury J Jupiter S Saturn U Uranus N Neptune

Create a mnemonic to remember the eight planets of our solar system.

Algorithm: 1. Start 2. Declare variables length, width, perimeter 3. Read length, width 4. Calculate perimeter as length + width + length + width 5. Print perimeter 6. End

Write an algorithm to calculate the perimeter of a rectangle.

The app interface should include a section with book recommendations, a search bar and filter options to refine results, a page for each book with ratings, reviews, and tags, a page for each author with profile information, a page for each genre with top books and related genres, and a page for user preferences.

Design an app interface for a book recommendation system.

Make Delicious Dishes - Cook up Fun with Our Mobile Game!

Compose a tagline for a mobile game about cooking.

What are the potential consequences of global warming?

Create a question about the consequences of global warming.

y = mx + b

State a mathematical equation that describes the relationship between two variables.

To clean silverware, start by filling a sink or basin with hot water and adding a tablespoon of baking soda. Submerge the silverware and let it sit for a few minutes before scrubbing it with a dish cloth. Rinse the silverware thoroughly and dry it with a clean towel.

Describe a process of cleaning silverware.

Recent declines in pollinator populations are likely caused by susceptibilities to disease, destruction of natural habitats, and the use of pesticides.

Give a possible explanation for recent declines in pollinator populations.

The player threw the ball.

Change the sentence from passive to active voice.

The ball was thrown by the player.

False

Label whether the following statements are true or false.

Some amphibians have wings

Always wash hands for at least 20 seconds with soap and warm water. Scrub all areas of the hands and between the fingers. Rinse and dry hands completely with a clean paper towel.

Create a rule for proper hand-washing technique.

The parts of a cell include the nucleus, cytoplasm, cell membrane, mitochondria, and other organelles. The nucleus is the control center of the cell and contains the genetic material, while the cytoplasm is the gel-like material that fills the cell and contains the organelles. The cell membrane is a semi-permeable barrier that regulates what enters and leaves the cell. Mitochondria are the "powerhouses" of the cell, providing energy to the cell.

Identify and define the parts of a cell.

1. Optimism 2. Self-confidence 3. Gratitude 4. Creativity 5. Compassion

Generate a list of five positive attitudes.

Verb: Played Tense: Past

Analyze the following sentence and identify the verb and its tense.

She played the piano.

This is a descriptive sentence.

Identify what type of sentence this is: My dog is cuddly and cute.

The repercussions of the pandemic have been devastating.

Rewrite the following sentence using a synonym for the word "impact": The impact of the pandemic has been devastating.

To thaw frozen food, place the food item in the refrigerator overnight or in a bowl of warm water for several hours. Once thawed, do not refreeze uncooked food.

Describe the process of thawing frozen food.

The death of John F. Kennedy forever changed the course of history, leaving a lasting legacy of hope and sorrow in its wake.

Generate an interesting sentence from the given title.

"The Death of John F. Kennedy"

Normalized data set: [0.2, -0.2, 0.1, -0.1, 0.16, -0.18, 0.08].

Do data normalization on given data set.

[1, -1, 0.5, -0.5, 0.8, -0.9, 0.4]

Three famous figures who were contemporaries of Galileo Galilei were Johannes Kepler, Christiaan Huygens, and Tycho Brahe.

Name three famous figures who were contemporaries of Galileo Galilei.

Two possible methods for predicting whether an email is a spam or not are supervised machine learning models such as artificial neural networks and Naive Bayes classifiers, or an unsupervised machine learning method such as clustering and anomaly detection.

Propose two appropriate and different methods to solve the given problem.

Predicting whether an email is a spam or not.

A sorting algorithm for the given list can use the following steps: 1. Compare the first two elements and swap them if the first element is greater than the second element. 2. Continue doing the same with the next two elements until the end of the list is reached. 3. Repeat steps 1 and 2 until the list is in sorted order. The sorted list would be: [1, 2, 4, 5, 6].

Design an algorithm to sort a given list.

[4, 1, 6, 5, 2]

I got an A in my English class.

What grade did you get in your English class?

I was late for work because I had to take my kids to school.

Combine the given sentences into one sentence.

I was late for work. I had to take my kids to school.

5309

Return the first four digits of the given credit card number.

5309 7677 8244 1346

John made dinner.

Rewrite the given passage in the past tense.

John is making dinner.

Two components of a computer system are the hardware and the software.

Name two component of a computer system.

The circumference of the given circle is 62.83 cm.

Calculate the circumference of the given circle.

Radius = 10 cm

Three famous works of Salvador Dali are "The Persistence of Memory," "The Slave Market with the Disappearing Bust of Voltaire," and "The Disintegration of the Persistence of Memory."

For the given artist, name three of their famous works.

Salvador Dali

Algorithmic complexity is a measure of the efficiency of an algorithm in relation to the amount of resources required to execute it.

Explain the given concept in one sentence.

Algorithmic complexity

Hello, how are you?

Translate the given sentence into English.

"Bonjour, comment allez-vous?"

Coffee Co.’s website should be designed with user experience in mind. It should have clear navigation and consistent design. Content should be easily accessible and should provide a personalized experience. The website should have engaging features such as quizzes, polls, and forums to help generate conversation and increase customer engagement. Additionally, the website should have an easy way for customers to contact the company and give feedback.

Develop a web page for a business to increase customer engagement.

Coffee Co.

The Tokyo Olympic Games have been postponed to 2021 due to the impact of the Covid-19 pandemic.

Generate a 1-sentence summary on the following news article.

The Tokyo Olympic Games will be postponed to 2021 due to the worldwide outbreak of Covid-19.

She drove to work every day.

Change the following sentence so that it is in the past tense.

She drives to work every day.

Leafy Greens: A Smart Choice for Smarter Minds.

Create a new headline that is witty and summarizes the article.

A new study has found that eating spinach can increase intelligence.

Work hard and stay ambitious with your goals to achieve the American dream.

Explain how to achieve the American dream in one sentence.

Software Engineer specialized in developing functional, effective web and mobile applications with expertise in Java, JavaScript, React.js, and HTML/CSS. Responsible for ensuring high performance, scalability, and maintainability of applications.

Make a resume for the following job.

Software Engineer

The algorithm for a sorting machine involves first taking input, followed by organizing the objects into two or more groups depending on a certain criteria such as size or type. Then, each group can be further sorted using a variety of methods such as insertion sort, selection sort, or bubble sort. Ultimately, the sorted objects can be output to make sure the sorting process is complete.

Generate an algorithm for a sorting machine.

Our new technology product is a platform that can measure access to healthcare. It can quickly identify gaps in access to healthcare services, such as geography, time, socio-economic status, and ethnicity, and make invaluable data available to both researchers and policymakers to help address these gaps.

Develop a pitch for a new technology product that can measure access to healthcare.

1. Develop a content plan: Decide on the topics that you want to cover in your blog and the frequency of your blog posts. 2. Come up with a catchy title: Make sure that your blog title is interesting, captivating and eye-catching. 3. Write engaging content: Provide interesting and thorough content that your readers will find useful and interesting. 4. Promote your blog: Use social media, email campaigns, and other marketing methods to promote your blog and get it noticed. 5. Interact with your readers: Ask questions and respond to comments to build rapport and create an engaging dialogue. 6. Update your blog frequently: Frequently update your blog to keep your readers engaged and interested. 7. Analyse the performance of your blog: Keep track of your blog’s metrics such as visitors, engagement rate, etc. to see how your blog is performing.

Create a list of tips to help someone who is new to blogging.

Chocolate Protein Pancakes: Ingredients: - 1 cup oat flour - 2 scoops chocolate protein powder - 1 teaspoon baking powder - 2 ripe bananas - 2 eggs - 1/2 cup almond milk - 1 teaspoon cinnamon - 2 tablespoons of honey - 2 tablespoons of coconut oil Instructions: 1. In a mixer, blend together oat flour, protein powder and baking powder. 2. In a separate bowl, mash the bananas and whisk in the eggs. 3. Mix the wet ingredients into the dry ingredients until well combined. 4. Then add the almond milk, cinnamon, honey and coconut oil. 5. Heat a pan over medium heat and grease with cooking spray. 6. Pour 1/4 cup of the batter into the pan and cook for about 2 minutes per side. 7. Serve with fresh fruit and honey. Enjoy!

Generate a recipe for a healthy breakfast.

Virtual learning can impact student performance both positively and negatively. On one hand, it can provide students with more flexibility, allowing them to learn at their own pace and allowing them to access materials from anywhere. On the other hand, virtual learning can be challenging as it requires an increased degree of self-motivation and dedication, as well as an understanding of the different technologies being used.

Explain the effect that virtual learning has on student performance.

Human beings could potentially teleport themselves through genetic manipulation.

Arrange the given words in a sentence.

genetic, beings, teleportation, Human

Ambiguous: Unclear or having multiple meanings Capricious: Unpredictable or inclined to change decisions suddenly Arbitrate: Settle a dispute by judging the facts impartially and issuing a decision.

Categorize the following words according to their definition.

Ambiguous, capricious, arbitrate

Throughout history, philosophers have debated the concept of personal identity. Initially, the focus was primarily on the self, but modern theorists are more inclined to study personal narratives and one's narrative identity. According to Locke, a person's memories and their ability to remember past experiences were key to maintaining one's personal identity over time. In contrast, Parfit rejected this view and instead proposed that psychological continuity was the key to remaining the same person. This involves remaining the same individual despite potential changes in the physical world or body.

Summarize the following text in one paragraph.

Theories of personal identity have changed over time. Philosophers in the past have focused mainly on the self, whereas modern theorists focus more on personal narratives and narrative identities. One example is Locke's definition of personal identity which states that you are the same person over time if you have personal memories of your past or if you can remember past experiences. Another example is Parfit's rejection of this notion and focus on the importance of psychological continuity, which is when you remain the same even if you are presented with a different physical world or body.

The result of the calculation is 4.

Replace all instances of the placeholder "$VARIABLE1" with the correct answer.

The result of the calculation is $VARIABLE1.

The title of the novel is Dr. No.

What is the title of the novel mentioned in the text?

Dr. No is the sixth novel by the English author Ian Fleming to feature his British Secret Service agent James Bond.

Is reading difficult?

Rearrange the words in the sentence to form a question.

Reading is difficult.

uxTpyT9X04

Generate a random password of length 10

Information Retrieval (IR) is the process of locating and extracting relevant information from a large collection of documents or datasets. It involves identifying, locating, describing, and retrieving relevant material related to an individual’s needs. In order to do this, IR utilizes a range of algorithms, query systems, and other techniques for finding information in large structured and unstructured datasets.

Explain the concept of information retrieval.

The student wrote the thesis.

Edit the following sentence to remove all passive voice.

The thesis was written by the student.

Natural Language Processing (NLP) is the ability for computers to understand and process human language. It uses linguistics, computer science, and artificial intelligence to analyze and interpret written or spoken human language in order to extract meaning and perform tasks. It can be used to detect intent, classify texts, generate summaries and insights, as well as helping machines understand, interpret and converse with humans.

Describe the concept of natural language processing.

Facebook, Twitter, Instagram, Snapchat.

List the names of four social media platforms.

-December 26, 2004: A 9.1-magnitude earthquake off the coast of Indonesia triggers a massive tsunami affecting Indonesia, Thailand, India, Sri Lanka, and other countries in the region. -December 29, 2004: The death toll from the disaster passes 10,000. -December 31, 2004: More than 90,000 people are reported dead and millions are displaced. -January 5, 2005: International relief effort is launched to help those affected. -April 2005: An intensive international relief and reconstruction effort is underway, with pledges of $5.5 billion in aid from countries and organizations around the world. -December 2005: The entire cost of the disaster is estimated at $14.5 billion. -March–April 2006: The final death toll reaches 220,000.

Create a timeline of the key events surrounding the 2004 Indian Ocean earthquake and tsunami.

To create a pivot table in Microsoft Excel, select the "Insert" tab, click the "PivotTable" button, select the data range, and choose where the pivot table will be placed. Then, select which data you'd like to analyze by adding fields to the Rows, Columns, and Values area of the pivot table. Finally, use the "Filter" in the PivotTable to refine your results.

How do you create a pivot table in Excel?