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: Look! There is a shark swimming right below that duck! It had better get away to safety fast!
 Question: Why does the 'It' refer to the duck?
Because The duck is the one most likely to be at risk in this situation making it likely they would need to get to safety.

Sentence: Pam's parents came home and found her having sex with her boyfriend, Paul. They were embarrassed about it.
 Question: Why does the 'They' refer to pam and paul?
Because Pam and Paul were the ones caught. So you assume they would be embarrassed.

Sentence: There is a pillar between me and the stage, and I can't see it .
 Question: Why does the 'it' refer to the stage?

Because view of stage could be blocked by pillars.