[Nicholas] was busy planning a camping trip with his daughter [Mary]. [Mary] and her brother [Glen] are both adopted from the same family.
('Glen', 'Nicholas')
[Mary] and her brother [Glen] are both adopted from the same family. [Nicholas] was busy planning a camping trip with his daughter [Mary].
[{('Glen', 'father', 'Nicholas'): [('Glen', 'sister', 'Mary'), ('Mary', 'father', 'Nicholas')]}]
['sister', 'father']