story: [Darnell] gave her brother [John] a new sweater for Christmas. [Darnell] was looking at her mother [Marian] very closely. She was confused because [Marian] was sitting next to her twin sister [Sandra].
query: ('Sandra', 'John')
clean_story: [Darnell] was looking at her mother [Marian] very closely. She was confused because [Marian] was sitting next to her twin sister [Sandra]. [Darnell] gave her brother [John] a new sweater for Christmas.
proof_state: [{('Sandra', 'nephew', 'John'): [('Sandra', 'sister', 'Marian'), ('Marian', 'son', 'John')]}, {('Marian', 'son', 'John'): [('Marian', 'daughter', 'Darnell'), ('Darnell', 'brother', 'John')]}]