[Bobby]'s brother, [Johnson], recently got elected as a senator. [Marie] borrowed some money from her brother [Johnson]. [David], [Bobby] mother, likes to take him to eat ice cream on Sundays.
('Marie', 'David')
[Marie] borrowed some money from her brother [Johnson]. [Bobby]'s brother, [Johnson], recently got elected as a senator. [David], [Bobby] mother, likes to take him to eat ice cream on Sundays.
[{('Marie', 'mother', 'David'): [('Marie', 'brother', 'Johnson'), ('Johnson', 'mother', 'David')]}, {('Johnson', 'mother', 'David'): [('Johnson', 'brother', 'Bobby'), ('Bobby', 'mother', 'David')]}]
['brother', 'brother', 'mother']