[David]'s nephew, [Wayne], brought her lunch at work. [Lynn] visited her sister, [Cindy], at the ocean for the weekend. [Cindy]'s son, [Wayne], joined the ladies for brunch one day.
('Lynn', 'David')
[Lynn] visited her sister, [Cindy], at the ocean for the weekend. [Cindy]'s son, [Wayne], joined the ladies for brunch one day. [David]'s nephew, [Wayne], brought her lunch at work.
[{('Lynn', 'sister', 'David'): [('Lynn', 'sister', 'Cindy'), ('Cindy', 'sister', 'David')]}, {('Cindy', 'sister', 'David'): [('Cindy', 'son', 'Wayne'), ('Wayne', 'aunt', 'David')]}]
['sister', 'son', 'aunt']