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.

Input: Consider Input: Sentence: The actress used to be named Terpsichore, but she changed it to Tina a  few years ago, because she figured it was too hard to pronounce.
 Question: Why does the 'it' refer to terpsichore?

Output: Because Terpsichore was too hard to pronounce.


Input: Consider Input: Sentence: I saw Jim yelling at some guy in a military uniform with a huge red  beard. I don't know who he was, but he looked very unhappy.
 Question: Why does the 'he' refer to the guy in uniform?

Output: Because Because the speaker knows Jim but he does not know the uniformed guy who looked unhappy.


Input: Consider Input: Sentence: Pete envies Martin although he is very successful.
 Question: Why does the 'he' refer to pete?


Output: Because He envies martin.