story: [Karen] borrowed some money from her brother [Brian]. [Melissa] and her daughter [Karen] were on vaction. [Melissa]'s daughter, [Stacy], just graduated high school.
query: ('Karen', 'Stacy')
clean_story: [Melissa] and her daughter [Karen] were on vaction. [Melissa]'s daughter, [Stacy], just graduated high school.
proof_state: [{('Karen', 'sister', 'Stacy'): [('Karen', 'mother', 'Melissa'), ('Melissa', 'daughter', 'Stacy')]}]