[Ashley] picked up her daughter [Nancy] from school early. [Kevin] loves his mother [Nancy] very much.
('Kevin', 'Ashley')
[Kevin] loves his mother [Nancy] very much. [Ashley] picked up her daughter [Nancy] from school early.
[{('Kevin', 'grandmother', 'Ashley'): [('Kevin', 'mother', 'Nancy'), ('Nancy', 'mother', 'Ashley')]}]
['mother', 'mother']