[Tracy] enjoys hanging out with her sister, [Beverly]. Sometimes [Beverly]'s son, [Samuel], takes them out for lunch. [Tracy] went with her brother [Robert] to the mall to buy some new candles. [Dorothy]'s nephew, [Samuel], brought her lunch at work.
('Robert', 'Dorothy')
[Tracy] went with her brother [Robert] to the mall to buy some new candles. [Tracy] enjoys hanging out with her sister, [Beverly]. Sometimes [Beverly]'s son, [Samuel], takes them out for lunch. [Dorothy]'s nephew, [Samuel], brought her lunch at work.
[{('Robert', 'sister', 'Dorothy'): [('Robert', 'sister', 'Beverly'), ('Beverly', 'sister', 'Dorothy')]}, {('Beverly', 'sister', 'Dorothy'): [('Beverly', 'son', 'Samuel'), ('Samuel', 'aunt', 'Dorothy')]}, {('Robert', 'sister', 'Beverly'): [('Robert', 'sister', 'Tracy'), ('Tracy', 'sister', 'Beverly')]}]
['sister', 'sister', 'son', 'aunt']