[James] brought home straight A's to his father [Pedro]. [Roberto] brought home straight C's to his father [Pedro]. [Dorothy] was sad she would n't be able to spend Christmas with her daughter, [Rebecca]. [Rebecca] had to stay home to care for her brother, [James].
('Roberto', 'Dorothy')
[James] brought home straight A's to his father [Pedro]. [Roberto] brought home straight C's to his father [Pedro]. [Dorothy] was sad she would n't be able to spend Christmas with her daughter, [Rebecca]. [Rebecca] had to stay home to care for her brother, [James].
[{('Roberto', 'mother', 'Dorothy'): [('Roberto', 'brother', 'James'), ('James', 'mother', 'Dorothy')]}, {('Roberto', 'brother', 'James'): [('Roberto', 'father', 'Pedro'), ('Pedro', 'son', 'James')]}, {('James', 'mother', 'Dorothy'): [('James', 'sister', 'Rebecca'), ('Rebecca', 'mother', 'Dorothy')]}]
['father', 'son', 'sister', 'mother']