story: [Chad], [Michael]'s son, fell and scraped his knee. [Gabrielle], [Michael]'s mother, came over and put a Band-Aid on the injury.
query: ('Gabrielle', 'Chad')
clean_story: [Chad], [Michael]'s son, fell and scraped his knee. [Gabrielle], [Michael]'s mother, came over and put a Band-Aid on the injury.
proof_state: [{('Gabrielle', 'grandson', 'Chad'): [('Gabrielle', 'son', 'Michael'), ('Michael', 'son', 'Chad')]}]