story: [Kathleen] and her son, [Edward], went to the park to fly a kite. They had fun doing it all day. [John] called up his mother, [Donna]. He told her all about his son, [Edward]'s, report card.
clean_story: [Kathleen] and her son, [Edward], went to the park to fly a kite. They had fun doing it all day. [John] called up his mother, [Donna]. He told her all about his son, [Edward]'s, report card.
proof_state: [{('Kathleen', 'mother', 'Donna'): [('Kathleen', 'son', 'Edward'), ('Edward', 'grandmother', 'Donna')]}, {('Edward', 'grandmother', 'Donna'): [('Edward', 'father', 'John'), ('John', 'mother', 'Donna')]}]