[Tony] wanted to buy a great gift for his mom, [Theresa], so he asked her brother, [Nicholas], for advice.
('Nicholas', 'Tony')
[Tony] wanted to buy a great gift for his mom, [Theresa], so he asked her brother, [Nicholas], for advice.
[{('Nicholas', 'nephew', 'Tony'): [('Nicholas', 'sister', 'Theresa'), ('Theresa', 'son', 'Tony')]}]
['sister', 'son']