[James] bought his wife [June] a new phone for her birthday. She loved it. [James] went to the park with his father, [Dale].
('June', 'Dale')
[James] bought his wife [June] a new phone for her birthday. She loved it. [James] went to the park with his father, [Dale].
[{('June', 'father-in-law', 'Dale'): [('June', 'husband', 'James'), ('James', 'father', 'Dale')]}]
['husband', 'father']