[Joshua]'s son [Clarence] and daughter [Felicia] went to stay a cabin with [Clarence]'s grandmother, [Frances].
('Frances', 'Felicia')
[Joshua]'s son [Clarence] and daughter [Felicia] went to stay a cabin with [Clarence]'s grandmother, [Frances].
[{('Frances', 'granddaughter', 'Felicia'): [('Frances', 'grandson', 'Clarence'), ('Clarence', 'sister', 'Felicia')]}, {('Clarence', 'sister', 'Felicia'): [('Clarence', 'father', 'Joshua'), ('Joshua', 'daughter', 'Felicia')]}]
['grandson', 'father', 'daughter']