[Nancy] and her daughter [Heidi] went to church. They were both very religious. [Heidi] called her grandfather [Clarence] on the phone, and asked if he would be visiting her soon. [Clarence] told her he'd be over tomorrow.
('Nancy', 'Clarence')
[Nancy] and her daughter [Heidi] went to church. They were both very religious. [Heidi] called her grandfather [Clarence] on the phone, and asked if he would be visiting her soon. [Clarence] told her he'd be over tomorrow.
[{('Nancy', 'father', 'Clarence'): [('Nancy', 'daughter', 'Heidi'), ('Heidi', 'grandfather', 'Clarence')]}]
['daughter', 'grandfather']