[David] is always around her brother [Joshua]. [Carrie] took her mother, [Cindy], out for lunch. [Cindy] is taking a trip to see her sister [David].
('Carrie', 'Joshua')
[Carrie] took her mother, [Cindy], out for lunch. [Cindy] is taking a trip to see her sister [David]. [David] is always around her brother [Joshua].
[{('Carrie', 'uncle', 'Joshua'): [('Carrie', 'mother', 'Cindy'), ('Cindy', 'brother', 'Joshua')]}, {('Cindy', 'brother', 'Joshua'): [('Cindy', 'sister', 'David'), ('David', 'brother', 'Joshua')]}]
['mother', 'sister', 'brother']