story: [Robert]'s mom [Alma] and his grandmother [Gabrielle] when shopping together.
query: ('Alma', 'Gabrielle')
clean_story: [Robert]'s mom [Alma] and his grandmother [Gabrielle] when shopping together.
proof_state: [{('Alma', 'mother', 'Gabrielle'): [('Alma', 'son', 'Robert'), ('Robert', 'grandmother', 'Gabrielle')]}]