story: [Georgina] was mad at her son, [Felix]. She found he'd been stealing from her purse. [Melvin] got his son, [Mark], a car for his birthday. [Mark] played golf with his father [Jacob] and his son [Felix].
clean_story: [Georgina] was mad at her son, [Felix]. She found he'd been stealing from her purse. [Mark] played golf with his father [Jacob] and his son [Felix].
proof_state: [{('Georgina', 'father', 'Jacob'): [('Georgina', 'son', 'Felix'), ('Felix', 'grandfather', 'Jacob')]}, {('Felix', 'grandfather', 'Jacob'): [('Felix', 'father', 'Mark'), ('Mark', 'father', 'Jacob')]}]