story: [James] and his son [Edward] went to the cinema together. [Antonio] and his son [James] went to the cinema together. [Elizabeth] and her son, [Edward], went to the park, and had a wonderful time. [Alverta] and her son [Pablo] went out to lunch together yesterday.
clean_story: [Elizabeth] and her son, [Edward], went to the park, and had a wonderful time. [James] and his son [Edward] went to the cinema together. [Antonio] and his son [James] went to the cinema together.
proof_state: [{('Elizabeth', 'father', 'Antonio'): [('Elizabeth', 'son', 'Edward'), ('Edward', 'grandfather', 'Antonio')]}, {('Edward', 'grandfather', 'Antonio'): [('Edward', 'father', 'James'), ('James', 'father', 'Antonio')]}]