story: [Peter] and his sister [Lisbeth] are going for a walk. [Rose] and her sister [Lisbeth] went shopping at the mall. [Rose]'s daughter [Jennifer] stayed home to study. [Rose] talks to her son [Scott] every day.
query: ('Peter', 'Jennifer')
clean_story: [Peter] and his sister [Lisbeth] are going for a walk. [Rose] and her sister [Lisbeth] went shopping at the mall. [Rose]'s daughter [Jennifer] stayed home to study.
proof_state: [{('Peter', 'niece', 'Jennifer'): [('Peter', 'sister', 'Rose'), ('Rose', 'daughter', 'Jennifer')]}, {('Peter', 'sister', 'Rose'): [('Peter', 'sister', 'Lisbeth'), ('Lisbeth', 'sister', 'Rose')]}]