story: [Sandra] wants to make a special meal for her daughter [Carol]'s birthday. [Rudolph] took his wife [Sandra] to the park to see the autumn foliage. [Sandra]'s son [Alfred] met them there with his son, [Johnny].
query: ('Rudolph', 'Johnny')
clean_story: [Rudolph] took his wife [Sandra] to the park to see the autumn foliage. [Sandra]'s son [Alfred] met them there with his son, [Johnny].
proof_state: [{('Rudolph', 'grandson', 'Johnny'): [('Rudolph', 'wife', 'Sandra'), ('Sandra', 'grandson', 'Johnny')]}, {('Sandra', 'grandson', 'Johnny'): [('Sandra', 'son', 'Alfred'), ('Alfred', 'son', 'Johnny')]}]