[Frances] took her grandson [Chris] to daycare today. [Martha] loves her mother, [Lena]. [Lena]'s son, [Chris], feels the same way.
('Martha', 'Frances')
[Martha] loves her mother, [Lena]. [Lena]'s son, [Chris], feels the same way. [Frances] took her grandson [Chris] to daycare today.
[{('Martha', 'grandmother', 'Frances'): [('Martha', 'brother', 'Chris'), ('Chris', 'grandmother', 'Frances')]}, {('Martha', 'brother', 'Chris'): [('Martha', 'mother', 'Lena'), ('Lena', 'son', 'Chris')]}]
['mother', 'son', 'grandmother']