Question:
Bill was robbed by John, so the officer arrested him.

Who is him referring to in this sentence?
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Answer:
John

Question:
Deal sites that monitor stores will be active during Thanksgiving weekend, but they do not necessarily guarantee you will get it first.

Who is they referring to in this sentence?
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Answer:
Deal sites

Question:
Google bought Motorola because they were bankrupt.

Who is they referring to in this sentence?
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Answer:
Motorola

Question:
The bee landed on the flower because it wanted pollen.

Who is it referring to in this sentence?
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Answer:
The bee