[Natasha]'s sister, [Carrie], recently started acting. [Richard] wanted to go swimming with her brother, [Wayne]. [Wayne], however, was n't interested as he wanted to play soccer with his sister, [Carrie].
('Richard', 'Natasha')
[Richard] wanted to go swimming with her brother, [Wayne]. [Wayne], however, was n't interested as he wanted to play soccer with his sister, [Carrie]. [Natasha]'s sister, [Carrie], recently started acting.
[{('Richard', 'sister', 'Natasha'): [('Richard', 'brother', 'Wayne'), ('Wayne', 'sister', 'Natasha')]}, {('Wayne', 'sister', 'Natasha'): [('Wayne', 'sister', 'Carrie'), ('Carrie', 'sister', 'Natasha')]}]
['brother', 'sister', 'sister']