[Francisco] and his sister [Lena] walked to school together every day, since they only lived two blocks away from the school. [Brandon] went fishing with his uncle [Francisco]. [David] took her son [Brandon] to the mall to shop for school clothes.
('David', 'Lena')
[David] took her son [Brandon] to the mall to shop for school clothes. [Brandon] went fishing with his uncle [Francisco]. [Francisco] and his sister [Lena] walked to school together every day, since they only lived two blocks away from the school.
[{('David', 'sister', 'Lena'): [('David', 'brother', 'Francisco'), ('Francisco', 'sister', 'Lena')]}, {('David', 'brother', 'Francisco'): [('David', 'son', 'Brandon'), ('Brandon', 'uncle', 'Francisco')]}]
['son', 'uncle', 'sister']