story: [Rebbeca] asked her father [Otto] if she could spend the night with a friend and he said okay. [Preston] enjoys talking to his sister and her son. Her son is [Dana]. [Otto] was so proud that his son [Dana] won the science fair!
query: ('Otto', 'Preston')
clean_story: [Otto] was so proud that his son [Dana] won the science fair! [Preston] enjoys talking to his sister and her son. Her son is [Dana].
proof_state: [{('Otto', 'brother', 'Preston'): [('Otto', 'son', 'Dana'), ('Dana', 'uncle', 'Preston')]}]