[Mary] is taking her grandson [Brent] out for ice cream. [Martha]'s son, [Brent], went with her to the store to buy candy for Halloween.
('Martha', 'Mary')
[Martha]'s son, [Brent], went with her to the store to buy candy for Halloween. [Mary] is taking her grandson [Brent] out for ice cream.
[{('Martha', 'mother', 'Mary'): [('Martha', 'son', 'Brent'), ('Brent', 'grandmother', 'Mary')]}]