[Vanessa], her brother, [Andy], and [Andy]'s father, [Matthew], went on a road trip. [Rich], [Matthew]'s brother, could n't come, because he had to study for finals.
('Vanessa', 'Rich')
[Vanessa], her brother, [Andy], and [Andy]'s father, [Matthew], went on a road trip. [Rich], [Matthew]'s brother, could n't come, because he had to study for finals.
[{('Vanessa', 'uncle', 'Rich'): [('Vanessa', 'father', 'Matthew'), ('Matthew', 'brother', 'Rich')]}, {('Vanessa', 'father', 'Matthew'): [('Vanessa', 'brother', 'Andy'), ('Andy', 'father', 'Matthew')]}]