story: [Melissa] likes taking her son [Brian] to school. [Edward] asked his mother [Melissa] to read to him. [Melissa] was too busy. [Melissa] and her daughter [Karen] went out to dinner.
query: ('Edward', 'Karen')
clean_story: [Edward] asked his mother [Melissa] to read to him. [Melissa] was too busy. [Melissa] and her daughter [Karen] went out to dinner.
proof_state: [{('Edward', 'sister', 'Karen'): [('Edward', 'mother', 'Melissa'), ('Melissa', 'daughter', 'Karen')]}]