story: [Stacy] gave her brother [Brian] a new sweater for Christmas. [Preston] is the proud father of the lovely [Brian] [Brian] wanted to get his brother [Edward] a Christmas gift so he asked his mother what she thought he would like. She said he liked video games.
query: ('Stacy', 'Edward')
clean_story: [Stacy] gave her brother [Brian] a new sweater for Christmas. [Brian] wanted to get his brother [Edward] a Christmas gift so he asked his mother what she thought he would like. She said he liked video games.
proof_state: [{('Stacy', 'brother', 'Edward'): [('Stacy', 'brother', 'Brian'), ('Brian', 'brother', 'Edward')]}]