story: [Melissa]'s daughter, [Karen], asked her mom to read her a story. [Melissa] was happy that her son [Brian] was getting along with his wife [Kerri].
query: ('Melissa', 'Kerri')
clean_story: [Melissa] was happy that her son [Brian] was getting along with his wife [Kerri].
proof_state: [{('Melissa', 'daughter-in-law', 'Kerri'): [('Melissa', 'son', 'Brian'), ('Brian', 'wife', 'Kerri')]}]