TASK DEFINITION: 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.
PROBLEM: Sentence: In July, Kamtchatka declared war on Yakutsk. Since Yakutsk's army was much  better equipped and ten times larger, they were victorious within weeks.
 Question: Why does the 'they' refer to yakutsk?

SOLUTION: Because Since Yakutsk's army was much better equipped and ten times larger, they were victorious within weeks but July, Kamtchatka declared war on Yakutsk.

PROBLEM: 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?

SOLUTION: 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.

PROBLEM: Sentence: Bob paid for Charlie's college education, but now Charlie acts as though it never happened. He is very hurt.
 Question: Why does the 'He' refer to bob?

SOLUTION:
Because now Charlie acts as though it never happened. He is very hurt Bob paid for Charlie's college education.