story: [James] and his wife [Rose] went to a lovely anniversary dinner. [Rose]'s son [Edward] and father [Rudolph] helped [Rudolph]'s wife [Sandra] renovate her kitchen.
query: ('Sandra', 'Edward')
clean_story: [Rose]'s son [Edward] and father [Rudolph] helped [Rudolph]'s wife [Sandra] renovate her kitchen.
proof_state: [{('Sandra', 'grandson', 'Edward'): [('Sandra', 'husband', 'Rudolph'), ('Rudolph', 'grandson', 'Edward')]}, {('Rudolph', 'grandson', 'Edward'): [('Rudolph', 'daughter', 'Rose'), ('Rose', 'son', 'Edward')]}]