[Hugh] went out to lunch with his sisters [Lena] and [Cindy]. [Cindy] had to get a babysitter for her daughter [Carrie] so she could go.
('Carrie', 'Lena')
[Hugh] went out to lunch with his sisters [Lena] and [Cindy]. [Cindy] had to get a babysitter for her daughter [Carrie] so she could go.
[{('Carrie', 'aunt', 'Lena'): [('Carrie', 'mother', 'Cindy'), ('Cindy', 'sister', 'Lena')]}, {('Cindy', 'sister', 'Lena'): [('Cindy', 'brother', 'Hugh'), ('Hugh', 'sister', 'Lena')]}]
['mother', 'brother', 'sister']