[Joshua] and his son [Clarence] went to the store to by bread. [Clarence] was the nephew of a man named [Hugh]. [Frances] is so happy for her son. Her son [Hugh] just joined the Army.
('Joshua', 'Frances')
[Joshua] and his son [Clarence] went to the store to by bread. [Clarence] was the nephew of a man named [Hugh]. [Frances] is so happy for her son. Her son [Hugh] just joined the Army.
[{('Joshua', 'mother', 'Frances'): [('Joshua', 'brother', 'Hugh'), ('Hugh', 'mother', 'Frances')]}, {('Joshua', 'brother', 'Hugh'): [('Joshua', 'son', 'Clarence'), ('Clarence', 'uncle', 'Hugh')]}]
['son', 'uncle', 'mother']