story: [Eric]'s daughter [Marlene] was playing on the swings in the park. [Lisa], his other daughter, was napping in the stroller. [Marlene], who is the sister of [Lisa], is a lovely girl. [Karen] loves making hot cocoa for her son's daughter. Her name is [Lisa].
clean_story: [Karen] loves making hot cocoa for her son's daughter. Her name is [Lisa]. [Marlene], who is the sister of [Lisa], is a lovely girl.
proof_state: [{('Karen', 'granddaughter', 'Marlene'): [('Karen', 'granddaughter', 'Lisa'), ('Lisa', 'sister', 'Marlene')]}]