story: [Dan] and her sister [Michelle] are planning on a short vacation. They are planning on visiting their mother [Dorothy] in London for Spring break.
query: ('Dan', 'Dorothy')
clean_story: [Dan] and her sister [Michelle] are planning on a short vacation. They are planning on visiting their mother [Dorothy] in London for Spring break.
proof_state: [{('Dan', 'mother', 'Dorothy'): [('Dan', 'sister', 'Michelle'), ('Michelle', 'mother', 'Dorothy')]}]