story: [Crystal]'s daughter, [Mary], asked her mom to read her a story. [Paul] likes to take his niece, [Glenna], for walks by the beach. [Crystal] told her daughter [Glenna] to wash up. Dinner was ready.
query: ('Crystal', 'Paul')
clean_story: [Crystal] told her daughter [Glenna] to wash up. Dinner was ready. [Paul] likes to take his niece, [Glenna], for walks by the beach.
proof_state: [{('Crystal', 'brother', 'Paul'): [('Crystal', 'daughter', 'Glenna'), ('Glenna', 'uncle', 'Paul')]}]