[John] likes to take his daughter [Ann] fishing. [Ann] took her uncle [Ernest] to the grocery store.
('John', 'Ernest')
[John] likes to take his daughter [Ann] fishing. [Ann] took her uncle [Ernest] to the grocery store.
[{('John', 'brother', 'Ernest'): [('John', 'daughter', 'Ann'), ('Ann', 'uncle', 'Ernest')]}]