story: [Jason] who is [Christopher]'s father grounded [Christopher] after finding out what [Christopher] had done at school. [Christopher] wanted to get a good gift for his sister, [Lisa]
query: ('Jason', 'Lisa')
clean_story: [Jason] who is [Christopher]'s father grounded [Christopher] after finding out what [Christopher] had done at school. [Christopher] wanted to get a good gift for his sister, [Lisa]
proof_state: [{('Jason', 'daughter', 'Lisa'): [('Jason', 'son', 'Christopher'), ('Christopher', 'sister', 'Lisa')]}]