story: [Carol] is taking a trip to see her sister [Lisa]. [Lisa] has a son named [Erik]. [Michelle]'s grandmother [Sandra] baked cookies for her after she came home from school. [Michelle] and her mother [Lisa] went dress shopping on Saturday.
query: ('Carol', 'Sandra')
clean_story: [Carol] is taking a trip to see her sister [Lisa]. [Michelle] and her mother [Lisa] went dress shopping on Saturday. [Michelle]'s grandmother [Sandra] baked cookies for her after she came home from school.
proof_state: [{('Carol', 'mother', 'Sandra'): [('Carol', 'sister', 'Lisa'), ('Lisa', 'mother', 'Sandra')]}, {('Lisa', 'mother', 'Sandra'): [('Lisa', 'daughter', 'Michelle'), ('Michelle', 'grandmother', 'Sandra')]}]