story: [Nancy] has a son called [Fletcher]. Each day they go to the park after school. [Minnie] loves playing checkers with her sister's son. His name is [Fletcher]. [Nancy] and her daughter [Dulce] went out for ice cream. [Nancy] got a cone and [Dulce] got a sundae.
query: ('Nancy', 'Minnie')
clean_story: [Nancy] has a son called [Fletcher]. Each day they go to the park after school. [Minnie] loves playing checkers with her sister's son. His name is [Fletcher].
proof_state: [{('Nancy', 'sister', 'Minnie'): [('Nancy', 'son', 'Fletcher'), ('Fletcher', 'aunt', 'Minnie')]}]