story: [Mark] and his brother [Bernard] went to the football game together. [James]'s mother [Michelle] and son [Mark] went to get ice cream after going to the park.
query: ('Mark', 'Michelle')
clean_story: [James]'s mother [Michelle] and son [Mark] went to get ice cream after going to the park.
proof_state: [{('Mark', 'grandmother', 'Michelle'): [('Mark', 'father', 'James'), ('James', 'mother', 'Michelle')]}]