story: [Preston] is taking his son [Brian] on a camping trip for the weekend. [Melissa] and her son [Brian] go with [Karen] to the baseball game.
query: ('Melissa', 'Karen')
clean_story: [Melissa] and her son [Brian] go with [Karen] to the baseball game.
proof_state: [{('Melissa', 'daughter', 'Karen'): [('Melissa', 'son', 'Brian'), ('Brian', 'sister', 'Karen')]}]