story: [David] and her son, [Bobby], went to the park to fly a kite. They had fun doing it all day. [James] enjoys reading books to his grandson, [Bobby]. [James] and his daughter [Lena] took a day off school to go to the zoo.
query: ('David', 'Lena')
clean_story: [David] and her son, [Bobby], went to the park to fly a kite. They had fun doing it all day. [James] enjoys reading books to his grandson, [Bobby]. [James] and his daughter [Lena] took a day off school to go to the zoo.
proof_state: [{('David', 'sister', 'Lena'): [('David', 'father', 'James'), ('James', 'daughter', 'Lena')]}, {('David', 'father', 'James'): [('David', 'son', 'Bobby'), ('Bobby', 'grandfather', 'James')]}]
edge_types: ['son', 'grandfather', 'daughter']