story: [Richard] took his sister [April] to the zoo. [April]'s daughter [Melba] was unable to go. [Benjamin] and his daughter [Melba] took a day off school to go to the zoo. [Patricia] enjoys playing cards with her brother. His name is [Richard].
query: ('Benjamin', 'Patricia')
clean_story: [Benjamin] and his daughter [Melba] took a day off school to go to the zoo. [Richard] took his sister [April] to the zoo. [April]'s daughter [Melba] was unable to go. [Patricia] enjoys playing cards with her brother. His name is [Richard].
proof_state: [{('Benjamin', 'sister', 'Patricia'): [('Benjamin', 'daughter', 'Melba'), ('Melba', 'aunt', 'Patricia')]}, {('Melba', 'aunt', 'Patricia'): [('Melba', 'mother', 'April'), ('April', 'sister', 'Patricia')]}, {('April', 'sister', 'Patricia'): [('April', 'brother', 'Richard'), ('Richard', 'sister', 'Patricia')]}]
edge_types: ['daughter', 'mother', 'brother', 'sister']