story: [Crystal]'s brother [Preston] joined the Army. While he was overseas, he left his daughter, [Karen], in [Crystal]'s care. [Brian] asked his son, [Preston], to help paint his house.
query: ('Crystal', 'Karen')
clean_story: [Crystal]'s brother [Preston] joined the Army. While he was overseas, he left his daughter, [Karen], in [Crystal]'s care.
proof_state: [{('Crystal', 'niece', 'Karen'): [('Crystal', 'brother', 'Preston'), ('Preston', 'daughter', 'Karen')]}]