story: [Edward] used to live with his sister [Karen] and his dad [Preston]. [Melissa] took her daughter [Karen] to see her very first ballet performance.
query: ('Karen', 'Preston')
clean_story: [Edward] used to live with his sister [Karen] and his dad [Preston].
proof_state: [{('Karen', 'father', 'Preston'): [('Karen', 'brother', 'Edward'), ('Edward', 'father', 'Preston')]}]