[Johnson] took his sister [Vanetta] out to dinner for her birthday. [Hugh] was picking up his son, [Johnson], from a soccer game when he received a call from his sister, [Lena].
('Vanetta', 'Lena')
[Johnson] took his sister [Vanetta] out to dinner for her birthday. [Hugh] was picking up his son, [Johnson], from a soccer game when he received a call from his sister, [Lena].
[{('Vanetta', 'aunt', 'Lena'): [('Vanetta', 'father', 'Hugh'), ('Hugh', 'sister', 'Lena')]}, {('Vanetta', 'father', 'Hugh'): [('Vanetta', 'brother', 'Johnson'), ('Johnson', 'father', 'Hugh')]}]
['brother', 'father', 'sister']