[Frances] has been married to [James] for twenty years. They have a daughter named [David]. [David] has a brother named [Wesley].
('James', 'Wesley')
[Frances] has been married to [James] for twenty years. They have a daughter named [David]. [David] has a brother named [Wesley].
[{('James', 'son', 'Wesley'): [('James', 'wife', 'Frances'), ('Frances', 'son', 'Wesley')]}, {('Frances', 'son', 'Wesley'): [('Frances', 'daughter', 'David'), ('David', 'brother', 'Wesley')]}]
['wife', 'daughter', 'brother']