In this task you need to give reasons to justify the pronoun coreference relations. Each of the provided inputs contains a sentence with a target pronoun and a question about how to justify the coreference between a noun phrase and the target pronoun. Good practices involve the discussion about how the descriptions attached to the targeted pronoun relate to the noun phrase candidate in the question. The reasoning could come from one or multiple following knowledge types about commonsense: First: 'Property', the knowledge about property of objects (e.g., ice is cold). Second: 'Object', the knowledge about objects (e.g., cats have ears). Third: 'Eventuality', the knowledge about eventuality (e.g., 'wake up' happens before 'open eyes'). Forth: 'Spatial', the knowledge about spatial position (e.g., object at the back can be blocked). Fifth: 'Quantity', the knowledge about numbers (e.g., 2 is smaller than 10). Sixth: all other knowledge if above ones are not suitable. Write the sentence in natural language.
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Question: Sentence: John hired himself out to Bill to take care of him .
 Question: Why does the 'him' refer to bill?

Answer: Because Hired himself to bill.


Question: Sentence: John couldn't see the stage with Billy in front of him because he is so tall.
 Question: Why does the 'he' refer to billy?

Answer: Because Billy in front of him because he is so talJohn couldn't see the stage.


Question: Sentence: Jim yelled at Kevin because he was so upset.
 Question: Why does the 'he' refer to jim?

Answer:
Because Jim is the yeller.