story: [Marian] is the proud mother of [Karen] and [Darnell]. [Marian] always go to visit her mother [Molly].
query: ('Darnell', 'Molly')
clean_story: [Marian] is the proud mother of [Karen] and [Darnell]. [Marian] always go to visit her mother [Molly].
proof_state: [{('Darnell', 'grandmother', 'Molly'): [('Darnell', 'sister', 'Karen'), ('Karen', 'grandmother', 'Molly')]}, {('Darnell', 'sister', 'Karen'): [('Darnell', 'mother', 'Marian'), ('Marian', 'daughter', 'Karen')]}]