story: [Jason] took his grandson [Dan] out for ice-cream. [Jason] has been with his wife [Gabrielle] since 1989.
query: ('Gabrielle', 'Dan')
clean_story: [Jason] has been with his wife [Gabrielle] since 1989. [Jason] took his grandson [Dan] out for ice-cream.
proof_state: [{('Gabrielle', 'grandson', 'Dan'): [('Gabrielle', 'husband', 'Jason'), ('Jason', 'grandson', 'Dan')]}]