[Charlotte] took her grandfather [Clarence] and sister [June] on a hiking trip two weekends ago.
('Clarence', 'June')
[Charlotte] took her grandfather [Clarence] and sister [June] on a hiking trip two weekends ago.
[{('Clarence', 'granddaughter', 'June'): [('Clarence', 'granddaughter', 'Charlotte'), ('Charlotte', 'sister', 'June')]}]
['granddaughter', 'sister']