[Hugh]'s son, [Bobby], was having trouble getting his remote control car to work. [Hugh]'s mother [Frances] figured out that the battery needed to be replaced. [James] bought his wife [Frances] roses.
('James', 'Bobby')
[James] bought his wife [Frances] roses. [Hugh]'s son, [Bobby], was having trouble getting his remote control car to work. [Hugh]'s mother [Frances] figured out that the battery needed to be replaced.
[{('James', 'grandson', 'Bobby'): [('James', 'wife', 'Frances'), ('Frances', 'grandson', 'Bobby')]}, {('Frances', 'grandson', 'Bobby'): [('Frances', 'son', 'Hugh'), ('Hugh', 'son', 'Bobby')]}]
['wife', 'son', 'son']