[Robert] has a lovely daughter who plays piano named [Angelica]. [Robert] also has a son [Ronald] who loves to play sports. [Angelica] asked her mother, [Marie], if she could go out with her tonight. [Marie] said she could n't, she had to care for her sick father, [Harold].
('Ronald', 'Harold')
[Robert] has a lovely daughter who plays piano named [Angelica]. [Robert] also has a son [Ronald] who loves to play sports. [Angelica] asked her mother, [Marie], if she could go out with her tonight. [Marie] said she could n't, she had to care for her sick father, [Harold].
[{('Ronald', 'grandfather', 'Harold'): [('Ronald', 'mother', 'Marie'), ('Marie', 'father', 'Harold')]}, {('Ronald', 'mother', 'Marie'): [('Ronald', 'sister', 'Angelica'), ('Angelica', 'mother', 'Marie')]}, {('Ronald', 'sister', 'Angelica'): [('Ronald', 'father', 'Robert'), ('Robert', 'daughter', 'Angelica')]}]
['father', 'daughter', 'mother', 'father']