story: [William] called up his mother, [Jennifer]. He told her all about his son, [Paul]'s, report card. [Rachel] always goes to the park with her son [Paul] on Saturdays. [Latasha] planned a trip to the zoo for her brother, [William]. They had a great time.
clean_story: [Rachel] always goes to the park with her son [Paul] on Saturdays. [William] called up his mother, [Jennifer]. He told her all about his son, [Paul]'s, report card.
proof_state: [{('Rachel', 'mother', 'Jennifer'): [('Rachel', 'son', 'Paul'), ('Paul', 'grandmother', 'Jennifer')]}, {('Paul', 'grandmother', 'Jennifer'): [('Paul', 'father', 'William'), ('William', 'mother', 'Jennifer')]}]