story: [Michelle] talks to her son [James] every day. [Michelle] is very close to her grandson, [Mark]. They often get together and talk over old times when [Michelle] used to babysit for him. [Mark] tripped his brother [Bernard] in the living room.
query: ('Michelle', 'Bernard')
clean_story: [Michelle] is very close to her grandson, [Mark]. They often get together and talk over old times when [Michelle] used to babysit for him. [Mark] tripped his brother [Bernard] in the living room.
proof_state: [{('Michelle', 'grandson', 'Bernard'): [('Michelle', 'grandson', 'Mark'), ('Mark', 'brother', 'Bernard')]}]