[June] wanted to go fishing with her dad, [Dale]. [Dale] invited his father, [Clarence], along as well.
('Clarence', 'June')
[June] wanted to go fishing with her dad, [Dale]. [Dale] invited his father, [Clarence], along as well.
[{('Clarence', 'granddaughter', 'June'): [('Clarence', 'son', 'Dale'), ('Dale', 'daughter', 'June')]}]
['son', 'daughter']