[Joshua] took his wife [Lynn] to Hawaii. [Joshua]'s dad [James] was worried because he had no idea where they were. [Don] loved his mother, [Lynn].
('James', 'Don')
[Joshua] took his wife [Lynn] to Hawaii. [Joshua]'s dad [James] was worried because he had no idea where they were. [Don] loved his mother, [Lynn].
[{('James', 'grandson', 'Don'): [('James', 'son', 'Joshua'), ('Joshua', 'son', 'Don')]}, {('Joshua', 'son', 'Don'): [('Joshua', 'wife', 'Lynn'), ('Lynn', 'son', 'Don')]}]
['son', 'wife', 'son']