story: [Myrna] is going to visit her mother, [Gabrielle]. Her daughter, [Anna], asked to come along.
query: ('Anna', 'Gabrielle')
clean_story: [Myrna] is going to visit her mother, [Gabrielle]. Her daughter, [Anna], asked to come along.
proof_state: [{('Anna', 'grandmother', 'Gabrielle'): [('Anna', 'mother', 'Myrna'), ('Myrna', 'mother', 'Gabrielle')]}]