story: [Minnie] and her husband [Otto] celebrated their anniversary last night. They went out to a nice restaurant to celebrate. [Otto] 'son [John] could not believe that his father bought him a coffee machine for his birthday. [Otto] and his daughter [Tammy] are planning a trip to the mountains. They have n't been in almost 10 years.
query: ('Minnie', 'John')
clean_story: [Minnie] and her husband [Otto] celebrated their anniversary last night. They went out to a nice restaurant to celebrate. [Otto] 'son [John] could not believe that his father bought him a coffee machine for his birthday.
proof_state: [{('Minnie', 'son', 'John'): [('Minnie', 'husband', 'Otto'), ('Otto', 'son', 'John')]}]