story: [Yvonne] was playing in the sandbox with her brother [Erik]. [Yvonne] loved played dolls with her grandmother, [Sandra]. [Sandra] has a son called [Alfred]. Each day they go to the park after school. [Lisa] wants to make a special meal for her daughter [Yvonne]'s birthday.
query: ('Lisa', 'Alfred')
clean_story: [Lisa] wants to make a special meal for her daughter [Yvonne]'s birthday. [Yvonne] loved played dolls with her grandmother, [Sandra]. [Sandra] has a son called [Alfred]. Each day they go to the park after school.
proof_state: [{('Lisa', 'brother', 'Alfred'): [('Lisa', 'mother', 'Sandra'), ('Sandra', 'son', 'Alfred')]}, {('Lisa', 'mother', 'Sandra'): [('Lisa', 'daughter', 'Yvonne'), ('Yvonne', 'grandmother', 'Sandra')]}]