story: [Nancy] and her mother [Michelle] went to volunteer at the homeless shelter last weekend. [Melissa] took her son [Brian] to school this morning because he missed the bus. [Michelle] is married to Thomas and when she was 24, the couple welcomed [Melissa] into the world.
query: ('Michelle', 'Brian')
clean_story: [Michelle] is married to Thomas and when she was 24, the couple welcomed [Melissa] into the world. [Melissa] took her son [Brian] to school this morning because he missed the bus.
proof_state: [{('Michelle', 'grandson', 'Brian'): [('Michelle', 'daughter', 'Melissa'), ('Melissa', 'son', 'Brian')]}]