instruction:
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.
question:
Sentence: Mary tucked her daughter Anne into bed, so that she could sleep.
 Question: Why does the 'she' refer to mary's daughter?
answer:
Because anne was tucked by her mother so that anne slept.


question:
Sentence: The fish ate the worm. It was tasty.
 Question: Why does the 'It' refer to the worm?
answer:
Because The worm is the main object that the very (ate) refers to.


question:
Sentence: Frank was upset with Tom because the toaster he had bought from him didn't work.
 Question: Why does the 'he' refer to frank?
answer:

Because He bought the toaster.