story: [Minnie] is playing in the park with her son [Dana]. [Preston] is calling his sister [Minnie] to let her know it's going to start to rain. [Paul] and his brother [Preston] went to see a baseball game on Friday and had a great time.
query: ('Preston', 'Dana')
clean_story: [Minnie] is playing in the park with her son [Dana]. [Preston] is calling his sister [Minnie] to let her know it's going to start to rain.
proof_state: [{('Preston', 'nephew', 'Dana'): [('Preston', 'sister', 'Minnie'), ('Minnie', 'son', 'Dana')]}]