O
B-CARDINAL
B-DATE
B-EVENT
B-FAC
B-GPE
B-LANGUAGE
B-LAW
B-LOC
B-MONEY
B-NORP
B-ORDINAL
B-ORG
B-PERCENT
B-PERSON
B-PRODUCT
B-QUANTITY
B-TIME
B-TITLE
B-WORK_OF_ART
I-CARDINAL
I-DATE
I-EVENT
I-FAC
I-GPE
I-LANGUAGE
I-LAW
I-LOC
I-MONEY
I-NORP
I-ORDINAL
I-ORG
I-PERCENT
I-PERSON
I-PRODUCT
I-QUANTITY
I-TIME
I-TITLE
I-WORK_OF_ART