[Herman] was delighted to watch his son [Danny] steal third base in the Championship baseball game. [Mary]'s biggest accomplishment is raising her son [Herman].
('Mary', 'Danny')
[Mary]'s biggest accomplishment is raising her son [Herman]. [Herman] was delighted to watch his son [Danny] steal third base in the Championship baseball game.
[{('Mary', 'grandson', 'Danny'): [('Mary', 'son', 'Herman'), ('Herman', 'son', 'Danny')]}]