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: When Tommy dropped his ice cream, Timmy giggled, so father gave him a sympathetic look.
 Question: Why does the 'him' refer to tommy?
answer:
Because Tommy would be upset about dropping his ice cream.


question:
Sentence: Tom gave Ralph a lift to school so he wouldn't have to drive alone.
 Question: Why does the 'he' refer to tom?
answer:
Because Tom was driving and would have been alone without Ralph.


question:
Sentence: Jane knocked on Susan's door but she did not get an answer.
 Question: Why does the 'she' refer to jane?
answer:

Because Jane knocked on Susan's door. You assume Susan didn't open the door.