story: [Sidney] and [Darnell], a married couple, took [Darnell]'s mother [Marian] out to lunch for her birthday. [Elliott] bought his wife, [Marian], a new necklace.
query: ('Elliott', 'Sidney')
clean_story: [Elliott] bought his wife, [Marian], a new necklace. [Sidney] and [Darnell], a married couple, took [Darnell]'s mother [Marian] out to lunch for her birthday.
proof_state: [{('Elliott', 'son-in-law', 'Sidney'): [('Elliott', 'daughter', 'Darnell'), ('Darnell', 'husband', 'Sidney')]}, {('Elliott', 'daughter', 'Darnell'): [('Elliott', 'wife', 'Marian'), ('Marian', 'daughter', 'Darnell')]}]