[Roy] and his wife, [Mary], were planning a surprise party. [Robert], [Mary]'s grandson, was turning 13, and they wanted him to be amazed and pleased by the celebration.
('Roy', 'Robert')
[Roy] and his wife, [Mary], were planning a surprise party. [Robert], [Mary]'s grandson, was turning 13, and they wanted him to be amazed and pleased by the celebration.
[{('Roy', 'grandson', 'Robert'): [('Roy', 'wife', 'Mary'), ('Mary', 'grandson', 'Robert')]}]