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