[Amy] and [Nicholas] have a strong relationship. They have been married for ten years. [Amy] has a son called [Dennis]. Each day they go to the park after school.
('Nicholas', 'Dennis')
[Amy] and [Nicholas] have a strong relationship. They have been married for ten years. [Amy] has a son called [Dennis]. Each day they go to the park after school.
[{('Nicholas', 'son', 'Dennis'): [('Nicholas', 'wife', 'Amy'), ('Amy', 'son', 'Dennis')]}]
['wife', 'son']