story: [Paul] decided to take his son, [Robert], on a ski vacation. [Paul] and his daughter [Sabrina] went with her grandfather [Adam] to the bowling alley.
query: ('Paul', 'Adam')
clean_story: [Paul] and his daughter [Sabrina] went with her grandfather [Adam] to the bowling alley.
proof_state: [{('Paul', 'father', 'Adam'): [('Paul', 'daughter', 'Sabrina'), ('Sabrina', 'grandfather', 'Adam')]}]