story: [Alfred] is the great brother of [Peter]. [Alfred] is taking his son [Willie] out for coffee. [Willie]'s uncle, [Mark], was being very loud at the dinner table. [Lisbeth] went with her husband [Alfred] to get a nice dinner for their anniversary.
query: ('Peter', 'Mark')
clean_story: [Alfred] is the great brother of [Peter]. [Alfred] is taking his son [Willie] out for coffee. [Willie]'s uncle, [Mark], was being very loud at the dinner table.
proof_state: [{('Peter', 'brother', 'Mark'): [('Peter', 'brother', 'Alfred'), ('Alfred', 'brother', 'Mark')]}, {('Alfred', 'brother', 'Mark'): [('Alfred', 'son', 'Willie'), ('Willie', 'uncle', 'Mark')]}]