story: [Lisa] took her son [Stacy] to school this morning because he missed the bus. [Stacy] and his father [Peter] went to town for some supplies. While in town they ran into [Peter]'s brother, [Alfred]. [Erik] love his brother [Stacy]. They are always playing together.
query: ('Lisa', 'Alfred')
clean_story: [Lisa] took her son [Stacy] to school this morning because he missed the bus. [Stacy] and his father [Peter] went to town for some supplies. While in town they ran into [Peter]'s brother, [Alfred].
proof_state: [{('Lisa', 'brother', 'Alfred'): [('Lisa', 'son', 'Stacy'), ('Stacy', 'uncle', 'Alfred')]}, {('Stacy', 'uncle', 'Alfred'): [('Stacy', 'father', 'Peter'), ('Peter', 'brother', 'Alfred')]}]