story: [Brandon] took his son [Hugh] out to play gold later that night. [Hugh] went to lunch with his wife [David]. [Frances] was excited because she got to go to the zoo with her grandson [Brandon].
query: ('David', 'Frances')
clean_story: [Hugh] went to lunch with his wife [David]. [Brandon] took his son [Hugh] out to play gold later that night. [Frances] was excited because she got to go to the zoo with her grandson [Brandon].
proof_state: [{('David', 'mother', 'Frances'): [('David', 'son', 'Brandon'), ('Brandon', 'grandmother', 'Frances')]}, {('David', 'son', 'Brandon'): [('David', 'husband', 'Hugh'), ('Hugh', 'son', 'Brandon')]}]
edge_types: ['husband', 'son', 'grandmother']