[Frances]'s daughter, [Cindy], just graduated high school. [Cindy] sat anxiously in the airport terminal, waiting to see her son [Leonard] walk through the gate. [Natasha] and her brother [Leonard] went to the basketball game and had a great time.
('Frances', 'Natasha')
[Frances]'s daughter, [Cindy], just graduated high school. [Cindy] sat anxiously in the airport terminal, waiting to see her son [Leonard] walk through the gate. [Natasha] and her brother [Leonard] went to the basketball game and had a great time.
[{('Frances', 'granddaughter', 'Natasha'): [('Frances', 'daughter', 'Cindy'), ('Cindy', 'daughter', 'Natasha')]}, {('Cindy', 'daughter', 'Natasha'): [('Cindy', 'son', 'Leonard'), ('Leonard', 'sister', 'Natasha')]}]
['daughter', 'son', 'sister']