[Roy]'s son, [Herman], was ill and needed to be picked up at school. [Roy] hurried to his side. [Herman] was so proud that his son [Danny] won the science fair!
('Roy', 'Danny')
[Roy]'s son, [Herman], was ill and needed to be picked up at school. [Roy] hurried to his side. [Herman] was so proud that his son [Danny] won the science fair!
[{('Roy', 'grandson', 'Danny'): [('Roy', 'son', 'Herman'), ('Herman', 'son', 'Danny')]}]