story: [William] was walked down to the bus stop by his sister [Carolina] because his mother [Nettie] told her to to do so. [Robert] and his daughter [Katherine] took a day off school to go to the zoo. [Katherine] just had a baby and presented the baby proudly to the new maternal grandmother, [Carolina]. [Carolina] bought her mother, [Nettie], a puppy for her birthday.
clean_story: [Robert] and his daughter [Katherine] took a day off school to go to the zoo. [Katherine] just had a baby and presented the baby proudly to the new maternal grandmother, [Carolina]. [Carolina] bought her mother, [Nettie], a puppy for her birthday.
proof_state: [{('Robert', 'mother', 'Nettie'): [('Robert', 'daughter', 'Katherine'), ('Katherine', 'grandmother', 'Nettie')]}, {('Katherine', 'grandmother', 'Nettie'): [('Katherine', 'mother', 'Carolina'), ('Carolina', 'mother', 'Nettie')]}]