story: [Sandra] and her son [Ellis] went to the zoo with [Sandra]'s brother [Elliott]. [Ellis] wanted to get his brother [Matthew] a Christmas gift so he asked his mother what she thought he would like. She said he liked video games.
query: ('Elliott', 'Matthew')
clean_story: [Sandra] and her son [Ellis] went to the zoo with [Sandra]'s brother [Elliott]. [Ellis] wanted to get his brother [Matthew] a Christmas gift so he asked his mother what she thought he would like. She said he liked video games.
proof_state: [{('Elliott', 'nephew', 'Matthew'): [('Elliott', 'sister', 'Sandra'), ('Sandra', 'son', 'Matthew')]}, {('Sandra', 'son', 'Matthew'): [('Sandra', 'son', 'Ellis'), ('Ellis', 'brother', 'Matthew')]}]