story: [Francisco] met his brother [Kenneth] for drinks after work. [Rose] went to the store with her brother [Alfred] and his son, [Francisco]. [Francisco] bought a present for his mother [Lisbeth].
query: ('Rose', 'Kenneth')
clean_story: [Rose] went to the store with her brother [Alfred] and his son, [Francisco]. [Francisco] met his brother [Kenneth] for drinks after work.
proof_state: [{('Rose', 'nephew', 'Kenneth'): [('Rose', 'brother', 'Alfred'), ('Alfred', 'son', 'Kenneth')]}, {('Alfred', 'son', 'Kenneth'): [('Alfred', 'son', 'Francisco'), ('Francisco', 'brother', 'Kenneth')]}]