story: [Dwight] and [Christopher] were twin brothers. [Christopher] never married, but [Dwight] did and had a daughter, [Donna]
query: ('Christopher', 'Donna')
clean_story: [Dwight] and [Christopher] were twin brothers. [Christopher] never married, but [Dwight] did and had a daughter, [Donna]
proof_state: [{('Christopher', 'niece', 'Donna'): [('Christopher', 'brother', 'Dwight'), ('Dwight', 'daughter', 'Donna')]}]