story: [Carol] loves playing checkers with her sister's son. His name is [Kenneth]. [Alfred] had taken his son [Kenneth] to the batting cages to practice for his big game. While watching his son, [Alfred] could n't help but think about when he used to go to the batting cages with his father [Rudolph]. [James]'s father's name is [Rudolph].
query: ('Rudolph', 'Carol')
clean_story: [Alfred] had taken his son [Kenneth] to the batting cages to practice for his big game. While watching his son, [Alfred] could n't help but think about when he used to go to the batting cages with his father [Rudolph]. [Carol] loves playing checkers with her sister's son. His name is [Kenneth].
proof_state: [{('Rudolph', 'daughter', 'Carol'): [('Rudolph', 'son', 'Alfred'), ('Alfred', 'sister', 'Carol')]}, {('Alfred', 'sister', 'Carol'): [('Alfred', 'son', 'Kenneth'), ('Kenneth', 'aunt', 'Carol')]}]