story: [Elliott] took his son [Mark] for boxing lessons. He felt the boy needed to toughen up. [Marian] and her son [Mark] had lunch together at a local Chinese restaurant. [Marian] asked her son [Craig] to help her fix her television.
query: ('Elliott', 'Craig')
clean_story: [Elliott] took his son [Mark] for boxing lessons. He felt the boy needed to toughen up. [Marian] and her son [Mark] had lunch together at a local Chinese restaurant. [Marian] asked her son [Craig] to help her fix her television.
proof_state: [{('Elliott', 'son', 'Craig'): [('Elliott', 'son', 'Mark'), ('Mark', 'brother', 'Craig')]}, {('Mark', 'brother', 'Craig'): [('Mark', 'mother', 'Marian'), ('Marian', 'son', 'Craig')]}]