story: [Lisa] went fishing with her father [Jason] and brother [Christopher] last weekend. They caught a dozen sea bass.
query: ('Jason', 'Christopher')
clean_story: [Lisa] went fishing with her father [Jason] and brother [Christopher] last weekend. They caught a dozen sea bass.
proof_state: [{('Jason', 'son', 'Christopher'): [('Jason', 'daughter', 'Lisa'), ('Lisa', 'brother', 'Christopher')]}]