story: [Annie] was on a trip with her father [Alan]. [Alan]'s son, [Carlos], stayed home with his grandfather [Stanley].
query: ('Annie', 'Stanley')
clean_story: [Annie] was on a trip with her father [Alan]. [Alan]'s son, [Carlos], stayed home with his grandfather [Stanley].
proof_state: [{('Annie', 'grandfather', 'Stanley'): [('Annie', 'brother', 'Carlos'), ('Carlos', 'grandfather', 'Stanley')]}, {('Annie', 'brother', 'Carlos'): [('Annie', 'father', 'Alan'), ('Alan', 'son', 'Carlos')]}]