story: [Carol] and her brother [James] went to the diner to eat yummy food together. [Peter] and his sister [Lisbeth] went to the park. [Lisbeth] called her brother, [James], up to see how he was doing after surgery. [James] took his daughter [Jeannette] to the bookstore, and bought her some books from her favorite author.
query: ('Peter', 'Carol')
clean_story: [Peter] and his sister [Lisbeth] went to the park. [Lisbeth] called her brother, [James], up to see how he was doing after surgery. [Carol] and her brother [James] went to the diner to eat yummy food together.
proof_state: [{('Peter', 'sister', 'Carol'): [('Peter', 'sister', 'Lisbeth'), ('Lisbeth', 'sister', 'Carol')]}, {('Lisbeth', 'sister', 'Carol'): [('Lisbeth', 'brother', 'James'), ('James', 'sister', 'Carol')]}]