[Pamela] is taking her grandfather [James] shopping. [Lena] takes her son [Chris] to the park every Saturday. [Chris] and his sister [Pamela] were hoping for a snow day.
('Lena', 'James')
[Lena] takes her son [Chris] to the park every Saturday. [Chris] and his sister [Pamela] were hoping for a snow day. [Pamela] is taking her grandfather [James] shopping.
[{('Lena', 'father', 'James'): [('Lena', 'daughter', 'Pamela'), ('Pamela', 'grandfather', 'James')]}, {('Lena', 'daughter', 'Pamela'): [('Lena', 'son', 'Chris'), ('Chris', 'sister', 'Pamela')]}]
['son', 'sister', 'grandfather']