story: [Michelle] took her son [Paul] to the park. [Otto] went out for pizza with his daughter [Rebbeca] and his brother [Paul].
query: ('Paul', 'Rebbeca')
clean_story: [Otto] went out for pizza with his daughter [Rebbeca] and his brother [Paul].
proof_state: [{('Paul', 'niece', 'Rebbeca'): [('Paul', 'brother', 'Otto'), ('Otto', 'daughter', 'Rebbeca')]}]