[John] enjoys the company of his wife, [Martha], in the evenings. [Martha] took her son [Franklin] to the park for the afternoon.
('John', 'Franklin')
[John] enjoys the company of his wife, [Martha], in the evenings. [Martha] took her son [Franklin] to the park for the afternoon.
[{('John', 'son', 'Franklin'): [('John', 'wife', 'Martha'), ('Martha', 'son', 'Franklin')]}]