[Nancy] sat anxiously in the airport terminal, waiting to see her son [Jeff] walk through the gate. [Nancy]'s father [Clarence] is taking her to a movie because she got good grades.
('Clarence', 'Jeff')
[Nancy]'s father [Clarence] is taking her to a movie because she got good grades. [Nancy] sat anxiously in the airport terminal, waiting to see her son [Jeff] walk through the gate.
[{('Clarence', 'grandson', 'Jeff'): [('Clarence', 'daughter', 'Nancy'), ('Nancy', 'son', 'Jeff')]}]
['daughter', 'son']