story: [Jason] went to the baseball game with his wife, [Gabrielle]. [Gabrielle]'s grandson [Robert] went with them.
query: ('Jason', 'Robert')
clean_story: [Jason] went to the baseball game with his wife, [Gabrielle]. [Gabrielle]'s grandson [Robert] went with them.
proof_state: [{('Jason', 'grandson', 'Robert'): [('Jason', 'wife', 'Gabrielle'), ('Gabrielle', 'grandson', 'Robert')]}]