[James] invited his son [Hugh] over for dinner. [Hugh] wanted to his invite his brother [Wesley] and [Wesley]'s daughter [Pamela] over as well.
('James', 'Pamela')
[James] invited his son [Hugh] over for dinner. [Hugh] wanted to his invite his brother [Wesley] and [Wesley]'s daughter [Pamela] over as well.
[{('James', 'granddaughter', 'Pamela'): [('James', 'son', 'Wesley'), ('Wesley', 'daughter', 'Pamela')]}, {('James', 'son', 'Wesley'): [('James', 'son', 'Hugh'), ('Hugh', 'brother', 'Wesley')]}]
['son', 'brother', 'daughter']