story: [Edward] is taking his father [Preston] out for a drink. [Karen] is looking forward to seeing her brother [Edward] later in the evening. [Edward] was sad to learn that his sister [Stacy] was not going to make it to dinner like they had planned.
query: ('Karen', 'Preston')
clean_story: [Edward] is taking his father [Preston] out for a drink. [Karen] is looking forward to seeing her brother [Edward] later in the evening.
proof_state: [{('Karen', 'father', 'Preston'): [('Karen', 'brother', 'Edward'), ('Edward', 'father', 'Preston')]}]