[Hugh] went to the baseball game with his son [Bobby] [Frances] took her son [Francisco] to the mall to shop for school clothes. [Hugh] and his brother [Francisco] fight a lot. Despite this, they still love each other very much.
('Frances', 'Bobby')
[Frances] took her son [Francisco] to the mall to shop for school clothes. [Hugh] and his brother [Francisco] fight a lot. Despite this, they still love each other very much. [Hugh] went to the baseball game with his son [Bobby]
[{('Frances', 'grandson', 'Bobby'): [('Frances', 'son', 'Hugh'), ('Hugh', 'son', 'Bobby')]}, {('Frances', 'son', 'Hugh'): [('Frances', 'son', 'Francisco'), ('Francisco', 'brother', 'Hugh')]}]
['son', 'brother', 'son']