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.

Sentence: James asked Robert for a favor but he refused.
 Question: Why does the 'he' refer to robert?
Because James is asking Robert, so Robert was replying.

Sentence: I couldn't put the pot on the shelf because it was too tall.
 Question: Why does the 'it' refer to the pot?
Because Most likely the pot couldn't fit on the shelf because it was to tall for the shelf space, however it could also be that the shelf was to high to reach to put the pot on.  But tall most likely refers to the pot rather than the shelf.

Sentence: Anna did a lot better than her good friend Lucy on the test because she had studied so hard.
 Question: Why does the 'she' refer to anna?

Because studying hard would make you do better.