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.

Q: Sentence: The trophy doesn't fit into the brown suitcase because it is too large.
 Question: Why does the 'it' refer to the trophy?

A: Because The trophy was to be carried inside the suitcase, but wouldn't fir.
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Q: Sentence: The father carried the sleeping boy in his bassinet.
 Question: Why does the 'his' refer to the boy?

A: Because A bassinet is a cradle, it makes more sense the sleeping boy is carried to his bed.
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Q: Sentence: Sam pulled up a chair to the piano, but it was broken, so he had to stand instead.
 Question: Why does the 'it' refer to the chair?

A:
Because He wanted to sit in the chair. If he had to stand, the chair had to be broken.
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