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: It was a summer afternoon, and the dog was sitting in the middle of the lawn. After a while, it got up and moved to a spot under the tree,  because it was cooler.
 Question: Why does the 'it' refer to the spot under the tree?
Because animals feel hot move to cooler places.

Sentence: The table won't fit through the doorway because it is too narrow.
 Question: Why does the 'it' refer to the doorway?
Because narrow doorways are hard to let other things go through.

Sentence: I stuck a pin through a carrot. When I pulled the pin out, it left a hole.
 Question: Why does the 'it' refer to the pin?

Because a carrot cannot leave a hole in itself.