[Dorothy] took her daughter [Heather] to see her very first ballet performance. [Harold] bought a book for his son [Antonio]. [Dorothy] asked her brother, [Robert], what he was doing this weekend. [Robert] told her he was spending it with his brother [Antonio].
('Heather', 'Harold')
[Dorothy] took her daughter [Heather] to see her very first ballet performance. [Dorothy] asked her brother, [Robert], what he was doing this weekend. [Robert] told her he was spending it with his brother [Antonio]. [Harold] bought a book for his son [Antonio].
[{('Heather', 'grandfather', 'Harold'): [('Heather', 'mother', 'Dorothy'), ('Dorothy', 'father', 'Harold')]}, {('Dorothy', 'father', 'Harold'): [('Dorothy', 'brother', 'Antonio'), ('Antonio', 'father', 'Harold')]}, {('Dorothy', 'brother', 'Antonio'): [('Dorothy', 'brother', 'Robert'), ('Robert', 'brother', 'Antonio')]}]
['mother', 'brother', 'brother', 'father']