[Thomas] and his father [Joshua] went to town for some supplies. While in town they ran into [Joshua]'s brother, [Hugh]. [Joseph] helped his brother, [Thomas], study for the chemistry exam.
('Joseph', 'Hugh')
[Joseph] helped his brother, [Thomas], study for the chemistry exam. [Thomas] and his father [Joshua] went to town for some supplies. While in town they ran into [Joshua]'s brother, [Hugh].
[{('Joseph', 'uncle', 'Hugh'): [('Joseph', 'father', 'Joshua'), ('Joshua', 'brother', 'Hugh')]}, {('Joseph', 'father', 'Joshua'): [('Joseph', 'brother', 'Thomas'), ('Thomas', 'father', 'Joshua')]}]
['brother', 'father', 'brother']