[Hugh] and his wife [David] and daughter [Vanetta] took a cruise this summer. [David] brother [Wesley] and his wife joined them.
('Wesley', 'Vanetta')
[Hugh] and his wife [David] and daughter [Vanetta] took a cruise this summer. [David] brother [Wesley] and his wife joined them.
[{('Wesley', 'niece', 'Vanetta'): [('Wesley', 'sister', 'David'), ('David', 'daughter', 'Vanetta')]}, {('David', 'daughter', 'Vanetta'): [('David', 'husband', 'Hugh'), ('Hugh', 'daughter', 'Vanetta')]}]
['sister', 'husband', 'daughter']