story: [Stanley] is [Molly]'s husband. [Valerie] has a son called [Clarence]. [Valerie] is a daughter of [Stanley].
query: ('Molly', 'Clarence')
clean_story: [Stanley] is [Molly]'s husband. [Valerie] has a son called [Clarence]. [Valerie] is a daughter of [Stanley].
proof_state: [{('Molly', 'grandson', 'Clarence'): [('Molly', 'husband', 'Stanley'), ('Stanley', 'grandson', 'Clarence')]}, {('Stanley', 'grandson', 'Clarence'): [('Stanley', 'daughter', 'Valerie'), ('Valerie', 'son', 'Clarence')]}]