story: When [Sandra] and [James] found out their son [Matthew] proposed to [Beverly] they were over the moon.
query: ('Sandra', 'Beverly')
clean_story: When [Sandra] and [James] found out their son [Matthew] proposed to [Beverly] they were over the moon.
proof_state: [{('Sandra', 'daughter-in-law', 'Beverly'): [('Sandra', 'son', 'Matthew'), ('Matthew', 'wife', 'Beverly')]}, {('Sandra', 'son', 'Matthew'): [('Sandra', 'husband', 'James'), ('James', 'son', 'Matthew')]}]