story: [Christopher] took his niece [Deborah] fishing Saturday. They caught a couple small fish. [Deborah] us the daughter of [Dwight] 'wife.
query: ('Dwight', 'Christopher')
clean_story: [Deborah] us the daughter of [Dwight] 'wife. [Christopher] took his niece [Deborah] fishing Saturday. They caught a couple small fish.
proof_state: [{('Dwight', 'brother', 'Christopher'): [('Dwight', 'daughter', 'Deborah'), ('Deborah', 'uncle', 'Christopher')]}]