[James] and his wife, [Frances], have been happily married for 20 years. They hope to stay married for life. [Joseph] loves his grandmother, [Frances], and sends her flowers every day. [Clarence] is [Joseph]'s brother and they are best friends.
('James', 'Clarence')
[James] and his wife, [Frances], have been happily married for 20 years. They hope to stay married for life. [Joseph] loves his grandmother, [Frances], and sends her flowers every day. [Clarence] is [Joseph]'s brother and they are best friends.
[{('James', 'grandson', 'Clarence'): [('James', 'wife', 'Frances'), ('Frances', 'grandson', 'Clarence')]}, {('Frances', 'grandson', 'Clarence'): [('Frances', 'grandson', 'Joseph'), ('Joseph', 'brother', 'Clarence')]}]
['wife', 'grandson', 'brother']