[Pedro] was teacher his daughter [Cheryl] how to drive. She made him a nervous wreck! [Jeffrey] asked his father, [Pedro], to help him with his math homework. [Pedro] could n't, because he was lousy at math himself. [Marie] is one of my favorite students. She is the younger sister of [Antonio], who I taught last year, [Antonio] took his niece [Cheryl] fishing Saturday. They caught a couple small fish.
('Jeffrey', 'Marie')
[Jeffrey] asked his father, [Pedro], to help him with his math homework. [Pedro] could n't, because he was lousy at math himself. [Pedro] was teacher his daughter [Cheryl] how to drive. She made him a nervous wreck! [Antonio] took his niece [Cheryl] fishing Saturday. They caught a couple small fish. [Marie] is one of my favorite students. She is the younger sister of [Antonio], who I taught last year,
[{('Jeffrey', 'aunt', 'Marie'): [('Jeffrey', 'father', 'Pedro'), ('Pedro', 'sister', 'Marie')]}, {('Pedro', 'sister', 'Marie'): [('Pedro', 'brother', 'Antonio'), ('Antonio', 'sister', 'Marie')]}, {('Pedro', 'brother', 'Antonio'): [('Pedro', 'daughter', 'Cheryl'), ('Cheryl', 'uncle', 'Antonio')]}]
['father', 'daughter', 'uncle', 'sister']