[Bettie] took her sister [Erika] out for dinner to celebrate her birthday. [Aaron]'s father, [Antonio], became ill at work and requested that his daughter, [Erika], pick him up from work. [Tracy] took her daughter [Bettie] to school during the cold winter morning.
('Aaron', 'Tracy')
[Aaron]'s father, [Antonio], became ill at work and requested that his daughter, [Erika], pick him up from work. [Bettie] took her sister [Erika] out for dinner to celebrate her birthday. [Tracy] took her daughter [Bettie] to school during the cold winter morning.
[{('Aaron', 'mother', 'Tracy'): [('Aaron', 'sister', 'Erika'), ('Erika', 'mother', 'Tracy')]}, {('Aaron', 'sister', 'Erika'): [('Aaron', 'father', 'Antonio'), ('Antonio', 'daughter', 'Erika')]}, {('Erika', 'mother', 'Tracy'): [('Erika', 'sister', 'Bettie'), ('Bettie', 'mother', 'Tracy')]}]
['father', 'daughter', 'sister', 'mother']