story: [Dana] is a man with a son named [Otto]. [Otto] is very happy to have such a great daughter like [Tammy]. [Dana]'s uncle, [Preston], stubbed his toe. [Dana] told him he should be more careful.
query: ('Otto', 'Preston')
clean_story: [Dana] is a man with a son named [Otto]. [Dana]'s uncle, [Preston], stubbed his toe. [Dana] told him he should be more careful.
proof_state: [{('Otto', 'brother', 'Preston'): [('Otto', 'son', 'Dana'), ('Dana', 'uncle', 'Preston')]}]