[Nicholas] was happy that his son [Michael] was doing well in college. [Amy] and her husband [Nicholas] were having trouble with their marriage. They saw a marriage counselor and were able to patch things up.
('Amy', 'Michael')
[Amy] and her husband [Nicholas] were having trouble with their marriage. They saw a marriage counselor and were able to patch things up. [Nicholas] was happy that his son [Michael] was doing well in college.
[{('Amy', 'son', 'Michael'): [('Amy', 'husband', 'Nicholas'), ('Nicholas', 'son', 'Michael')]}]
['husband', 'son']