story: [Milton] invited his sister [Melanie] to dinner this Friday because it is her birthday. [Victoria] took her brothers [William] and [Samuel] to a baseball game. [Victoria]'s son [Richard] went dancing instead. [Melanie] and her brother [Samuel] went to see a movie.
query: ('Milton', 'Richard')
clean_story: [Milton] invited his sister [Melanie] to dinner this Friday because it is her birthday. [Melanie] and her brother [Samuel] went to see a movie. [Victoria] took her brothers [William] and [Samuel] to a baseball game. [Victoria]'s son [Richard] went dancing instead.
proof_state: [{('Milton', 'nephew', 'Richard'): [('Milton', 'sister', 'Victoria'), ('Victoria', 'son', 'Richard')]}, {('Milton', 'sister', 'Victoria'): [('Milton', 'sister', 'Melanie'), ('Melanie', 'sister', 'Victoria')]}, {('Melanie', 'sister', 'Victoria'): [('Melanie', 'brother', 'Samuel'), ('Samuel', 'sister', 'Victoria')]}, {('Samuel', 'sister', 'Victoria'): [('Samuel', 'brother', 'William'), ('William', 'sister', 'Victoria')]}]
edge_types: ['sister', 'brother', 'brother', 'sister', 'son']