[Amy] took her son, [Dennis], to the movie theater for his birthday. [Jennifer] went shopping at the mall with her mother [Amy]
('Jennifer', 'Dennis')
[Jennifer] went shopping at the mall with her mother [Amy] [Amy] took her son, [Dennis], to the movie theater for his birthday.
[{('Jennifer', 'brother', 'Dennis'): [('Jennifer', 'mother', 'Amy'), ('Amy', 'son', 'Dennis')]}]
['mother', 'son']