Brothers [Wesley] and [Hugh] took [Wesley]'s wife [Lena] and her son [Theodore] on a big fancy cruise.
('Hugh', 'Theodore')
Brothers [Wesley] and [Hugh] took [Wesley]'s wife [Lena] and her son [Theodore] on a big fancy cruise.
[{('Hugh', 'nephew', 'Theodore'): [('Hugh', 'brother', 'Wesley'), ('Wesley', 'son', 'Theodore')]}, {('Wesley', 'son', 'Theodore'): [('Wesley', 'wife', 'Lena'), ('Lena', 'son', 'Theodore')]}]
['brother', 'wife', 'son']