[Tracy] called her brother, [Robert], up to see how he was doing after surgery. [Tracy] took her son [Aaron] shopping for new school clothes. They had a good time. [Antonio] took his son [Aaron] and his daughter [Bettie] to the zoo over the weekend. They ate lunch while they were there.
('Bettie', 'Robert')
[Antonio] took his son [Aaron] and his daughter [Bettie] to the zoo over the weekend. They ate lunch while they were there. [Tracy] took her son [Aaron] shopping for new school clothes. They had a good time. [Tracy] called her brother, [Robert], up to see how he was doing after surgery.
[{('Bettie', 'uncle', 'Robert'): [('Bettie', 'father', 'Antonio'), ('Antonio', 'brother', 'Robert')]}, {('Antonio', 'brother', 'Robert'): [('Antonio', 'son', 'Aaron'), ('Aaron', 'uncle', 'Robert')]}, {('Aaron', 'uncle', 'Robert'): [('Aaron', 'mother', 'Tracy'), ('Tracy', 'brother', 'Robert')]}]
['father', 'son', 'mother', 'brother']