story: [Latasha] and her son [Thomas] went out to lunch together yesterday. [Eric] was out with his son [Thomas]. Later that day they went to see [Eric]'s father, [Jacob]. [Crystal] went to dinner with her daughter [Latasha]. They then went to the park afterwards.
clean_story: [Latasha] and her son [Thomas] went out to lunch together yesterday. [Eric] was out with his son [Thomas]. Later that day they went to see [Eric]'s father, [Jacob].
proof_state: [{('Latasha', 'father', 'Jacob'): [('Latasha', 'son', 'Thomas'), ('Thomas', 'grandfather', 'Jacob')]}, {('Thomas', 'grandfather', 'Jacob'): [('Thomas', 'father', 'Eric'), ('Eric', 'father', 'Jacob')]}]