[Robert] took his son [Ronald] to school this morning because he missed the bus. [Ronald] went fishing with his uncle [Louis]. [Michelle]'s sister, [Angelica], needed help fixing her car. [Angelica]'s father, [Robert], offered to do it for her.
('Michelle', 'Louis')
[Michelle]'s sister, [Angelica], needed help fixing her car. [Angelica]'s father, [Robert], offered to do it for her. [Robert] took his son [Ronald] to school this morning because he missed the bus. [Ronald] went fishing with his uncle [Louis].
[{('Michelle', 'uncle', 'Louis'): [('Michelle', 'father', 'Robert'), ('Robert', 'brother', 'Louis')]}, {('Robert', 'brother', 'Louis'): [('Robert', 'son', 'Ronald'), ('Ronald', 'uncle', 'Louis')]}, {('Michelle', 'father', 'Robert'): [('Michelle', 'sister', 'Angelica'), ('Angelica', 'father', 'Robert')]}]
['sister', 'father', 'son', 'uncle']