[Michael] is so excited that he gets to visit his aunt [Lena] this summer. [Frances] took her daughter [David] to lunch. [David] had to hire a babysitter for her son, [Michael], so she could go out.
('Frances', 'Lena')
[Frances] took her daughter [David] to lunch. [David] had to hire a babysitter for her son, [Michael], so she could go out. [Michael] is so excited that he gets to visit his aunt [Lena] this summer.
[{('Frances', 'daughter', 'Lena'): [('Frances', 'daughter', 'David'), ('David', 'sister', 'Lena')]}, {('David', 'sister', 'Lena'): [('David', 'son', 'Michael'), ('Michael', 'aunt', 'Lena')]}]
['daughter', 'son', 'aunt']