story: [John] took his sisters [Tammy] and [Rebbeca] on a hiking trip last weekend. [Minnie] took her daughter [Rebbeca] to school during the cold winter morning.
query: ('Rebbeca', 'Tammy')
clean_story: [John] took his sisters [Tammy] and [Rebbeca] on a hiking trip last weekend.
proof_state: [{('Rebbeca', 'sister', 'Tammy'): [('Rebbeca', 'brother', 'John'), ('John', 'sister', 'Tammy')]}]