story: [James] met his brother [Michael] for drinks after work. [James] and her sister [Lisa] decided to take a trip to Mexico together.
query: ('Lisa', 'Michael')
clean_story: [James] and her sister [Lisa] decided to take a trip to Mexico together. [James] met his brother [Michael] for drinks after work.
proof_state: [{('Lisa', 'brother', 'Michael'): [('Lisa', 'brother', 'James'), ('James', 'brother', 'Michael')]}]