story: [Brian]'s father's name is [Preston]. [Preston]'s wife, [Melissa], was excited to start her new job. [Brian] asked his grandmother, [Michelle], to read him a bedtime story. [Michelle] read him Hansel & Gretel, which the boy always loved.
query: ('Preston', 'Michelle')
clean_story: [Brian]'s father's name is [Preston]. [Brian] asked his grandmother, [Michelle], to read him a bedtime story. [Michelle] read him Hansel & Gretel, which the boy always loved.
proof_state: [{('Preston', 'mother', 'Michelle'): [('Preston', 'son', 'Brian'), ('Brian', 'grandmother', 'Michelle')]}]