[James] said good-bye to his grandfather, [Johnson]. [Johnson]'s brother, [Bobby], stood there silently during the exchange, a sad expression on his face. [Bobby] loves to play baseball with his dad, [Hugh].
('Hugh', 'James')
[Bobby] loves to play baseball with his dad, [Hugh]. [James] said good-bye to his grandfather, [Johnson]. [Johnson]'s brother, [Bobby], stood there silently during the exchange, a sad expression on his face.
[{('Hugh', 'father', 'James'): [('Hugh', 'son', 'Bobby'), ('Bobby', 'grandfather', 'James')]}, {('Bobby', 'grandfather', 'James'): [('Bobby', 'brother', 'Johnson'), ('Johnson', 'grandfather', 'James')]}]
['son', 'brother', 'grandfather']