story: [Bernard] and his wife [Glenna] hosted Thanksgiving dinner at their house this year. [Bernard] also invited his mother [Crystal]. [David] and his brother [Bernard] went to the carnival. [Bernard] wanted to ride the Ferris wheel, but [David] insisted they go on the bumper cars first.
query: ('Glenna', 'Crystal')
clean_story: [Bernard] and his wife [Glenna] hosted Thanksgiving dinner at their house this year. [Bernard] also invited his mother [Crystal].
proof_state: [{('Glenna', 'mother-in-law', 'Crystal'): [('Glenna', 'husband', 'Bernard'), ('Bernard', 'mother', 'Crystal')]}]