[Dale] helped his mother [Ashley] move into a new apartment. [Nicolas], [Dale]'s son, helped them carry boxes inside the new apartment.
('Nicolas', 'Ashley')
[Dale] helped his mother [Ashley] move into a new apartment. [Nicolas], [Dale]'s son, helped them carry boxes inside the new apartment.
[{('Nicolas', 'grandmother', 'Ashley'): [('Nicolas', 'father', 'Dale'), ('Dale', 'mother', 'Ashley')]}]
['father', 'mother']