story: [Cecilia] bought her mother, [Nettie], a puppy for her birthday. [Stephen] walked his daughter [Leah] down the aisle on her wedding day. [Cecilia] had a daughter named [Leah]. [William] was walked down to the bus stop by his sister [Cecilia] because his mother [Nettie] told her to to do so.
clean_story: [Stephen] walked his daughter [Leah] down the aisle on her wedding day. [Cecilia] had a daughter named [Leah]. [Cecilia] bought her mother, [Nettie], a puppy for her birthday.
proof_state: [{('Stephen', 'mother', 'Nettie'): [('Stephen', 'daughter', 'Leah'), ('Leah', 'grandmother', 'Nettie')]}, {('Leah', 'grandmother', 'Nettie'): [('Leah', 'mother', 'Cecilia'), ('Cecilia', 'mother', 'Nettie')]}]