[Michael] is happy that his brother, [William], is becoming successful. [William] made dinner reservations for his sister [Cleo].
('Michael', 'Cleo')
[Michael] is happy that his brother, [William], is becoming successful. [William] made dinner reservations for his sister [Cleo].
[{('Michael', 'sister', 'Cleo'): [('Michael', 'brother', 'William'), ('William', 'sister', 'Cleo')]}]