story: [Marian] needed to go to the store. [Marian] asked her sister [Sandra] for a ride. [Elliott] is taking his son [Sidney] out for coffee. [Marian] and her husband [Elliott] are getting divorced. Their kids are grown, and they find that they have little in common anymore.
query: ('Sandra', 'Sidney')
clean_story: [Marian] needed to go to the store. [Marian] asked her sister [Sandra] for a ride. [Marian] and her husband [Elliott] are getting divorced. Their kids are grown, and they find that they have little in common anymore. [Elliott] is taking his son [Sidney] out for coffee.
proof_state: [{('Sandra', 'nephew', 'Sidney'): [('Sandra', 'sister', 'Marian'), ('Marian', 'son', 'Sidney')]}, {('Marian', 'son', 'Sidney'): [('Marian', 'husband', 'Elliott'), ('Elliott', 'son', 'Sidney')]}]