story: [Melissa] enjoys making burritos for her son. His name is [Mack]. [Melissa] took her daughter, [Kerri], out to High Tea yesterday afternoon. [Preston] is married to a special woman. Her name is [Melissa].
query: ('Mack', 'Kerri')
clean_story: [Melissa] enjoys making burritos for her son. His name is [Mack]. [Melissa] took her daughter, [Kerri], out to High Tea yesterday afternoon.
proof_state: [{('Mack', 'sister', 'Kerri'): [('Mack', 'mother', 'Melissa'), ('Melissa', 'daughter', 'Kerri')]}]