[Dale]'s mother [Ashley] and son [James] went to get ice cream after going to the park.
('James', 'Ashley')
[Dale]'s mother [Ashley] and son [James] went to get ice cream after going to the park.
[{('James', 'grandmother', 'Ashley'): [('James', 'father', 'Dale'), ('Dale', 'mother', 'Ashley')]}]
['father', 'mother']