story: [Stanley] took his son [Alan] and [Alan]'s brother [Elliott] on a fishing trip. [Elliott]'s son [Sidney] stayed home because he was sick.
query: ('Stanley', 'Sidney')
clean_story: [Stanley] took his son [Alan] and [Alan]'s brother [Elliott] on a fishing trip. [Elliott]'s son [Sidney] stayed home because he was sick.
proof_state: [{('Stanley', 'grandson', 'Sidney'): [('Stanley', 'son', 'Elliott'), ('Elliott', 'son', 'Sidney')]}, {('Stanley', 'son', 'Elliott'): [('Stanley', 'son', 'Alan'), ('Alan', 'brother', 'Elliott')]}]