[Shantel] and her husband, [Harold], went to visit [Jerome] at college. [Harold] could n't wait to see how his grandson was doing in his first year. [Roberto] brought home straight A's to his father [Pedro]. [Jerome] brought home straight C's to his father [Pedro].
('Shantel', 'Roberto')
[Shantel] and her husband, [Harold], went to visit [Jerome] at college. [Harold] could n't wait to see how his grandson was doing in his first year. [Roberto] brought home straight A's to his father [Pedro]. [Jerome] brought home straight C's to his father [Pedro].
[{('Shantel', 'grandson', 'Roberto'): [('Shantel', 'grandson', 'Jerome'), ('Jerome', 'brother', 'Roberto')]}, {('Shantel', 'grandson', 'Jerome'): [('Shantel', 'husband', 'Harold'), ('Harold', 'grandson', 'Jerome')]}, {('Jerome', 'brother', 'Roberto'): [('Jerome', 'father', 'Pedro'), ('Pedro', 'son', 'Roberto')]}]
['husband', 'grandson', 'father', 'son']