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<html><head>
<style>
body { font-family: Arial, sans-serif; margin: 20px; }
h1 { text-align: center; }
.cot-title { color: blue; }
.pos-title { color: green; }
h2 { color: black; text-align: left; }
h3 { color: black; text-align: left; }
h4 { color: darkslategray; }
table { width: 100%; border-collapse: collapse; margin: 20px 0; }
table, th, td { border: 1px solid #ddd; padding: 8px; }
th { background-color: #f2f2f2; }
tr:nth-child(even) { background-color: #f9f9f9; }
.highlight { background-color: #ffffcc; }
.true { color: green; }
.false { color: red; }
.highlighted-cell { background-color: yellow; cursor: pointer; }
.step-title { background-color: #f1f1f1; color: #444; padding: 10px; margin: 10px 0; font-size: 18px; border-left: 4px solid #888; }
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<hr/>
<h3><span>Statement:</span> the score of the 2010 world cup qualification was 2 - 1 and the venue was seoul , south korea</h3>
<h3>Input Table: kwak tae - hwi</h3>
<div class="step">
<div class="step">
<div class="step-title">Step 1: Select rows where 'competition' is '2010 world cup qualification'.</div>
<div class="content" id="step-1">
<table>
<tr>
<td>date</td>
<td>venue</td>
<td>score</td>
<td>result</td>
<td>competition</td>
</tr>
<tr>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">2008-02-02</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">seoul , south korea</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">1 - 0</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">4 - 0</span></td>
<td><span class="highlighted-cell" style="background-color:#90EE90;" title="Used in transformation">2010 world cup qualification</span></td>
</tr>
<tr>
<td>2008-02-17</td>
<td>chongqing , china</td>
<td>3 - 2</td>
<td>3 - 2</td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">2008 east asian cup</span></td>
</tr>
<tr>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">2008-10-15</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">seoul , south korea</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">4 - 1</span></td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">4 - 1</span></td>
<td><span class="highlighted-cell" style="background-color:#90EE90;" title="Used in transformation">2010 world cup qualification</span></td>
</tr>
<tr>
<td>2010-03-03</td>
<td>london , england</td>
<td>2 - 0</td>
<td>2 - 0</td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">friendly</span></td>
</tr>
<tr>
<td>2012-06-08</td>
<td>doha , qatar</td>
<td>2 - 1</td>
<td>4 - 1</td>
<td><span class="highlighted-cell" style="background-color:yellow;" title="Used in transformation">2014 world cup qualification</span></td>
</tr>
</table>
</div>
<hr/>
<div class="step">
<div class="step-title">Step 2: Select rows where 'score' is '2 - 1'.</div>
<div class="content" id="step-0">
<table>
<tr>
<td>date</td>
<td>venue</td>
<td>score</td>
<td>result</td>
<td>competition</td>
</tr>
<tr>
<td>2008-02-02</td>
<td>seoul , south korea</td>
<td>1 - 0</td>
<td>4 - 0</td>
<td>2010 world cup qualification</td>
</tr>
<tr>
<td>2008-10-15</td>
<td>seoul , south korea</td>
<td>4 - 1</td>
<td>4 - 1</td>
<td>2010 world cup qualification</td>
</tr>
</table>
</div>
</div>
<hr/>
<div class="step">
<div class="step-title">Step 3: Select rows where 'venue' is 'seoul , south korea'.</div>
<div class="content" id="step-1">
<table>
<tr>
<td>date</td>
<td>venue</td>
<td>score</td>
<td>result</td>
<td>competition</td>
</tr>
</table>
</div>
</div>
<hr/>
<div class="step">
<div class="step-title">Step 4: Use a `CASE` statement to return TRUE if the number of rows is equal to 1, otherwise return FALSE.</div>
<div class="content" id="step-2">
<table>
<tr>
<td>date</td>
<td>venue</td>
<td>score</td>
<td>result</td>
<td>competition</td>
</tr>
</table>
</div>
</div>
<hr/>
</div>
</div>
<hr/>
</body></html>
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