[Louis] took his niece [Angelica] to the park to walk her dog. [Elsie] went shopping at the mall with her mother [Marie] After leaving his mom [Marie]'s house [Mario] called his sister [Angelica].
('Elsie', 'Louis')
[Elsie] went shopping at the mall with her mother [Marie] After leaving his mom [Marie]'s house [Mario] called his sister [Angelica]. [Louis] took his niece [Angelica] to the park to walk her dog.
[{('Elsie', 'uncle', 'Louis'): [('Elsie', 'mother', 'Marie'), ('Marie', 'brother', 'Louis')]}, {('Marie', 'brother', 'Louis'): [('Marie', 'daughter', 'Angelica'), ('Angelica', 'uncle', 'Louis')]}, {('Marie', 'daughter', 'Angelica'): [('Marie', 'son', 'Mario'), ('Mario', 'sister', 'Angelica')]}]
['mother', 'son', 'sister', 'uncle']