[Kevin] made steaks for his brother [Lionel] and sister [Amalia]. [Amalia]'s sister [Claudia] is on a diet and ate a salad.
('Lionel', 'Claudia')
[Kevin] made steaks for his brother [Lionel] and sister [Amalia]. [Amalia]'s sister [Claudia] is on a diet and ate a salad.
[{('Lionel', 'sister', 'Claudia'): [('Lionel', 'sister', 'Amalia'), ('Amalia', 'sister', 'Claudia')]}, {('Lionel', 'sister', 'Amalia'): [('Lionel', 'brother', 'Kevin'), ('Kevin', 'sister', 'Amalia')]}]