story: [Clarence] and his grandfather [Stanley] like to play chess together. [Valerie] showed pictures of her son [Clarence] to her sister [Michelle]
query: ('Michelle', 'Stanley')
clean_story: [Valerie] showed pictures of her son [Clarence] to her sister [Michelle] [Clarence] and his grandfather [Stanley] like to play chess together.
proof_state: [{('Michelle', 'father', 'Stanley'): [('Michelle', 'sister', 'Valerie'), ('Valerie', 'father', 'Stanley')]}, {('Valerie', 'father', 'Stanley'): [('Valerie', 'son', 'Clarence'), ('Clarence', 'grandfather', 'Stanley')]}]