[Ernest] was so excited to introduce his new girlfriend to his mother, [Mary]. [Ernest] was so proud that his son [Timmy] won the science fair!
('Mary', 'Timmy')
[Ernest] was so excited to introduce his new girlfriend to his mother, [Mary]. [Ernest] was so proud that his son [Timmy] won the science fair!
[{('Mary', 'grandson', 'Timmy'): [('Mary', 'son', 'Ernest'), ('Ernest', 'son', 'Timmy')]}]