[Cindy]'s father [James] and brother [Joshua] built a boat together, which was painted by [Joshua]'s son [Clarence].
('James', 'Clarence')
[Cindy]'s father [James] and brother [Joshua] built a boat together, which was painted by [Joshua]'s son [Clarence].
[{('James', 'grandson', 'Clarence'): [('James', 'son', 'Joshua'), ('Joshua', 'son', 'Clarence')]}, {('James', 'son', 'Joshua'): [('James', 'daughter', 'Cindy'), ('Cindy', 'brother', 'Joshua')]}]
['daughter', 'brother', 'son']