story: [Anna] loves her brother [William]. [Jason] is the proud grandfather of the cute [William].
query: ('Anna', 'Jason')
clean_story: [Anna] loves her brother [William]. [Jason] is the proud grandfather of the cute [William].
proof_state: [{('Anna', 'grandfather', 'Jason'): [('Anna', 'brother', 'William'), ('William', 'grandfather', 'Jason')]}]