[Cindy] asked her sister [Lynn] to hurry up and get off the phone. [Cindy]'s sister [Lena] told her to wait her turn and be more patient. [Theodore] was so excited to introduce his new girlfriend to his mother, [Lena].
('Lynn', 'Theodore')
[Cindy] asked her sister [Lynn] to hurry up and get off the phone. [Cindy]'s sister [Lena] told her to wait her turn and be more patient. [Theodore] was so excited to introduce his new girlfriend to his mother, [Lena].
[{('Lynn', 'nephew', 'Theodore'): [('Lynn', 'sister', 'Lena'), ('Lena', 'son', 'Theodore')]}, {('Lynn', 'sister', 'Lena'): [('Lynn', 'sister', 'Cindy'), ('Cindy', 'sister', 'Lena')]}]
['sister', 'sister', 'son']