story: [Donald] went his grandfather [Jason] to the park to look for birds. [Donald] and his sister [Jennifer] went to the park.
query: ('Jason', 'Jennifer')
clean_story: [Donald] went his grandfather [Jason] to the park to look for birds. [Donald] and his sister [Jennifer] went to the park.
proof_state: [{('Jason', 'granddaughter', 'Jennifer'): [('Jason', 'grandson', 'Donald'), ('Donald', 'sister', 'Jennifer')]}]