[David]'s son, [Brandon], was busy with school activities and forgot to meet his sister. [Johnson] was playing his sister [Vanetta]. Suddenly, [Vanetta]'s mother [David] called her to come upstairs right away.
('Johnson', 'Brandon')
[Johnson] was playing his sister [Vanetta]. Suddenly, [Vanetta]'s mother [David] called her to come upstairs right away. [David]'s son, [Brandon], was busy with school activities and forgot to meet his sister.
[{('Johnson', 'brother', 'Brandon'): [('Johnson', 'sister', 'Vanetta'), ('Vanetta', 'brother', 'Brandon')]}, {('Vanetta', 'brother', 'Brandon'): [('Vanetta', 'mother', 'David'), ('David', 'son', 'Brandon')]}]
['sister', 'mother', 'son']