[Charles] plays piano so good that his grandfather [James] gifted him a new set this winter. [Lynn] went to the store with her brother [Wesley] and his son, [Charles].
('Lynn', 'James')
[Lynn] went to the store with her brother [Wesley] and his son, [Charles]. [Charles] plays piano so good that his grandfather [James] gifted him a new set this winter.
[{('Lynn', 'father', 'James'): [('Lynn', 'brother', 'Wesley'), ('Wesley', 'father', 'James')]}, {('Wesley', 'father', 'James'): [('Wesley', 'son', 'Charles'), ('Charles', 'grandfather', 'James')]}]
['brother', 'son', 'grandfather']