story: [Diana] and her mother [Rose] went to volunteer at the homeless shelter last weekend. [Alfred] went to the ball game with his brothers [Mark] and [Peter]. [Mark] is one of [Rose]'s brothers. They have lots of fun together.
query: ('Rose', 'Peter')
clean_story: [Mark] is one of [Rose]'s brothers. They have lots of fun together. [Alfred] went to the ball game with his brothers [Mark] and [Peter].
proof_state: [{('Rose', 'brother', 'Peter'): [('Rose', 'brother', 'Mark'), ('Mark', 'brother', 'Peter')]}, {('Mark', 'brother', 'Peter'): [('Mark', 'brother', 'Alfred'), ('Alfred', 'brother', 'Peter')]}]