story: [William] takes care of his brother, [Jeffrey] and his grandmother, [Gabrielle].
query: ('Jeffrey', 'Gabrielle')
clean_story: [William] takes care of his brother, [Jeffrey] and his grandmother, [Gabrielle].
proof_state: [{('Jeffrey', 'grandmother', 'Gabrielle'): [('Jeffrey', 'brother', 'William'), ('William', 'grandmother', 'Gabrielle')]}]