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: If the con artist has succeeded in fooling Sam, he would have lost a lot of money.
 Question: Why does the 'he' refer to sam?
Because A con artist that succeeds is not going to lose money so of course it's Sam would be the one that would be loosing money.

Sentence: Sam and Amy are passionately in love, but Amy's parents are unhappy about it, because they are snobs.
 Question: Why does the 'they' refer to amy's parents?
Because snob parents do not like their children in love.

Sentence: Sam Goodman's biography of the Spartan general Xenophanes conveys a vivid sense of the difficulties he faced in his childhood.
 Question: Why does the 'he' refer to xenophanes?

Because Biography is about Xenophanes.