story: [Preston] is a great uncle of [Claire]. [Claire] is so proud that [Paul], his father, quit smoking. [Claire] and her mother [Nancy] went to volunteer at the homeless shelter last weekend.
query: ('Nancy', 'Preston')
clean_story: [Claire] and her mother [Nancy] went to volunteer at the homeless shelter last weekend. [Preston] is a great uncle of [Claire].
proof_state: [{('Nancy', 'brother', 'Preston'): [('Nancy', 'daughter', 'Claire'), ('Claire', 'uncle', 'Preston')]}]