[Joshua] bought a book for his father [James]. [Wesley] and his son [Charles] went to the park and saw [Wesley]'s father [James] there with his dog.
('Charles', 'Joshua')
[Wesley] and his son [Charles] went to the park and saw [Wesley]'s father [James] there with his dog. [Joshua] bought a book for his father [James].
[{('Charles', 'uncle', 'Joshua'): [('Charles', 'father', 'Wesley'), ('Wesley', 'brother', 'Joshua')]}, {('Wesley', 'brother', 'Joshua'): [('Wesley', 'father', 'James'), ('James', 'son', 'Joshua')]}]
['father', 'father', 'son']