story: [Gabrielle] played catch with her grandson [Russell]. [Russell]'s father [Michael] was busy at work and could n't join them.
query: ('Michael', 'Gabrielle')
clean_story: [Gabrielle] played catch with her grandson [Russell]. [Russell]'s father [Michael] was busy at work and could n't join them.
proof_state: [{('Michael', 'mother', 'Gabrielle'): [('Michael', 'son', 'Russell'), ('Russell', 'grandmother', 'Gabrielle')]}]