[Wesley] and his brother [Francisco] were rarely seen apart. [Richard] asked his son, [Francisco], to help paint his house. [Hugh] helped his brother, [Wesley], study for the chemistry exam.
('Hugh', 'Richard')
[Hugh] helped his brother, [Wesley], study for the chemistry exam. [Wesley] and his brother [Francisco] were rarely seen apart. [Richard] asked his son, [Francisco], to help paint his house.
[{('Hugh', 'nephew', 'Richard'): [('Hugh', 'brother', 'Francisco'), ('Francisco', 'son', 'Richard')]}, {('Hugh', 'brother', 'Francisco'): [('Hugh', 'brother', 'Wesley'), ('Wesley', 'brother', 'Francisco')]}]
['brother', 'brother', 'son']