[Antonio] and his brother [Pedro] were playing tag in the park. [Pedro] asked his mother [Shantel] where babies came from. [Shantel] told him they came from the stork. [Beverly] was talking to her brothers [Antonio] and [Robert] when her mother yelled for her to come inside.
('Robert', 'Shantel')
[Beverly] was talking to her brothers [Antonio] and [Robert] when her mother yelled for her to come inside. [Antonio] and his brother [Pedro] were playing tag in the park. [Pedro] asked his mother [Shantel] where babies came from. [Shantel] told him they came from the stork.
[{('Robert', 'mother', 'Shantel'): [('Robert', 'brother', 'Antonio'), ('Antonio', 'mother', 'Shantel')]}, {('Robert', 'brother', 'Antonio'): [('Robert', 'sister', 'Beverly'), ('Beverly', 'brother', 'Antonio')]}, {('Antonio', 'mother', 'Shantel'): [('Antonio', 'brother', 'Pedro'), ('Pedro', 'mother', 'Shantel')]}]
['sister', 'brother', 'brother', 'mother']