story: [Carol] and her husband [Mark] will be celebrating 30 years of marriage this month. [Mark]'s daughter, [Anna], was bored. So, she asked her sister [Mary] to play with her. [Mark] took his son [David] to school this morning because he missed the bus.
query: ('Carol', 'Mary')
clean_story: [Carol] and her husband [Mark] will be celebrating 30 years of marriage this month. [Mark]'s daughter, [Anna], was bored. So, she asked her sister [Mary] to play with her.
proof_state: [{('Carol', 'daughter', 'Mary'): [('Carol', 'husband', 'Mark'), ('Mark', 'daughter', 'Mary')]}, {('Mark', 'daughter', 'Mary'): [('Mark', 'daughter', 'Anna'), ('Anna', 'sister', 'Mary')]}]