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: The man lifted the boy onto his bunk bed.
 Question: Why does the 'his' refer to the boy?
Because It was the boy's bed.

Sentence: Many people start to read Paul's books and can't put them down. They are popular because Paul writes so well.
 Question: Why does the 'They' refer to paul's books?
Because People love Paul's books. They are popular. So the books are popular, not the people.

Sentence: The older students were bullying the younger ones, so we punished them .
 Question: Why does the 'them' refer to the older students?

Because The where bullying the younger students.