story: [Michael] and his son, [Thomas] are going to the zoo with his wife, [Angela]. [Angela] asked if her father, [Stanley] could come along.
query: ('Thomas', 'Stanley')
clean_story: [Michael] and his son, [Thomas] are going to the zoo with his wife, [Angela]. [Angela] asked if her father, [Stanley] could come along.
proof_state: [{('Thomas', 'grandfather', 'Stanley'): [('Thomas', 'sister', 'Angela'), ('Angela', 'grandfather', 'Stanley')]}, {('Thomas', 'sister', 'Angela'): [('Thomas', 'father', 'Michael'), ('Michael', 'daughter', 'Angela')]}]