[Pedro] and his daughter [Cheryl] helped to make Thanksgiving dinner together. [Cheryl] loves visiting with her aunt [Tracy]. [Harold] is an engineer who loves to take his son [Pedro] to the science museum to help him learn about the world [Harold] taught his daughter, [Marie], how to ride a bike.
('Marie', 'Tracy')
[Harold] taught his daughter, [Marie], how to ride a bike. [Harold] is an engineer who loves to take his son [Pedro] to the science museum to help him learn about the world [Pedro] and his daughter [Cheryl] helped to make Thanksgiving dinner together. [Cheryl] loves visiting with her aunt [Tracy].
[{('Marie', 'sister', 'Tracy'): [('Marie', 'father', 'Harold'), ('Harold', 'daughter', 'Tracy')]}, {('Harold', 'daughter', 'Tracy'): [('Harold', 'son', 'Pedro'), ('Pedro', 'sister', 'Tracy')]}, {('Pedro', 'sister', 'Tracy'): [('Pedro', 'daughter', 'Cheryl'), ('Cheryl', 'aunt', 'Tracy')]}]
['father', 'son', 'daughter', 'aunt']