story: [Raymond] loves to play baseball with his dad, [Otto]. [Otto] wanted to teach his son [Dana] to play football. So [Otto] asked his brother [Preston] to come help teach him.
query: ('Dana', 'Preston')
clean_story: [Otto] wanted to teach his son [Dana] to play football. So [Otto] asked his brother [Preston] to come help teach him.
proof_state: [{('Dana', 'uncle', 'Preston'): [('Dana', 'father', 'Otto'), ('Otto', 'brother', 'Preston')]}]