[James] was so proud that his son [Joshua] won the science fair! [Charles]'s grandfather [James] helped his mother, [Lena], repaint her house today.
('Lena', 'Joshua')
[Charles]'s grandfather [James] helped his mother, [Lena], repaint her house today. [James] was so proud that his son [Joshua] won the science fair!
[{('Lena', 'brother', 'Joshua'): [('Lena', 'father', 'James'), ('James', 'son', 'Joshua')]}, {('Lena', 'father', 'James'): [('Lena', 'son', 'Charles'), ('Charles', 'grandfather', 'James')]}]
['son', 'grandfather', 'son']