[Pamela] adores her daughter [Lena]. [Lena] loves her very much, too. [Cindy] asked her sister [David] to hurry up and get off the phone. [Cindy]'s sister [Lena] told her to wait her turn and be more patient.
('David', 'Pamela')
[Cindy] asked her sister [David] to hurry up and get off the phone. [Cindy]'s sister [Lena] told her to wait her turn and be more patient. [Pamela] adores her daughter [Lena]. [Lena] loves her very much, too.
[{('David', 'niece', 'Pamela'): [('David', 'sister', 'Lena'), ('Lena', 'daughter', 'Pamela')]}, {('David', 'sister', 'Lena'): [('David', 'sister', 'Cindy'), ('Cindy', 'sister', 'Lena')]}]
['sister', 'sister', 'daughter']