[Bobby] tripped his brother [Johnson] in the living room. [David] was tired of cooking all the time so she invited over her daughter [Gloria] and her son [Bobby] to cook dinner for her.
('Gloria', 'Johnson')
[David] was tired of cooking all the time so she invited over her daughter [Gloria] and her son [Bobby] to cook dinner for her. [Bobby] tripped his brother [Johnson] in the living room.
[{('Gloria', 'brother', 'Johnson'): [('Gloria', 'mother', 'David'), ('David', 'son', 'Johnson')]}, {('David', 'son', 'Johnson'): [('David', 'son', 'Bobby'), ('Bobby', 'brother', 'Johnson')]}]
['mother', 'son', 'brother']