story: [Crystal]'s mom, [Michelle], has recently taken art classes. [Bernard] and his brother [Mark] were playing tag in the park. [Crystal] and her son [Bernard] had lunch together at a local Chinese restaurant.
query: ('Bernard', 'Michelle')
clean_story: [Crystal] and her son [Bernard] had lunch together at a local Chinese restaurant. [Crystal]'s mom, [Michelle], has recently taken art classes.
proof_state: [{('Bernard', 'grandmother', 'Michelle'): [('Bernard', 'mother', 'Crystal'), ('Crystal', 'mother', 'Michelle')]}]