[Wesley] has a wife who is [Lena]. [Lena] has a son called [Chris]. [Wesley] is male, [Lena] is female. [Charles] is [Chris]'s brother. [Charles] is male
('Wesley', 'Charles')
[Wesley] has a wife who is [Lena]. [Lena] has a son called [Chris]. [Wesley] is male, [Lena] is female. [Charles] is [Chris]'s brother. [Charles] is male
[{('Wesley', 'son', 'Charles'): [('Wesley', 'wife', 'Lena'), ('Lena', 'son', 'Charles')]}, {('Lena', 'son', 'Charles'): [('Lena', 'son', 'Chris'), ('Chris', 'brother', 'Charles')]}]
['wife', 'son', 'brother']