story: [Melissa] was talking about food with her sister [Nancy]. [Karen] went grocery shopping with her mother, [Melissa]. [Melissa]'s father [Adam] asked them to pick up milk for him.
query: ('Karen', 'Adam')
clean_story: [Karen] went grocery shopping with her mother, [Melissa]. [Melissa]'s father [Adam] asked them to pick up milk for him.
proof_state: [{('Karen', 'grandfather', 'Adam'): [('Karen', 'mother', 'Melissa'), ('Melissa', 'father', 'Adam')]}]