[Bobby] could n't wait to introduce his new son to his uncle, [Joshua]. [Johnson]'s brother, [Bobby], is important to him. [Johnson]'s mom, [David], cares for both of them.
('David', 'Joshua')
[Johnson]'s brother, [Bobby], is important to him. [Johnson]'s mom, [David], cares for both of them. [Bobby] could n't wait to introduce his new son to his uncle, [Joshua].
[{('David', 'brother', 'Joshua'): [('David', 'son', 'Bobby'), ('Bobby', 'uncle', 'Joshua')]}, {('David', 'son', 'Bobby'): [('David', 'son', 'Johnson'), ('Johnson', 'brother', 'Bobby')]}]
['son', 'brother', 'uncle']