[Cindy] invited her nephew, [Chris], over for dinner. [Chris] and his dad [Wesley] went to the mall to buy a birthday present for [Lena]. It was also a Mother's Day gift.
('Lena', 'Cindy')
[Chris] and his dad [Wesley] went to the mall to buy a birthday present for [Lena]. It was also a Mother's Day gift. [Cindy] invited her nephew, [Chris], over for dinner.
[{('Lena', 'sister', 'Cindy'): [('Lena', 'son', 'Chris'), ('Chris', 'aunt', 'Cindy')]}, {('Lena', 'son', 'Chris'): [('Lena', 'husband', 'Wesley'), ('Wesley', 'son', 'Chris')]}]
['husband', 'son', 'aunt']