[Lena] and her sister [Cindy] are the only children in their family. [Pete] loves his mother very much. Her name is [Cindy]. [Lena] called her mother [Frances] to let her know she will be back home soon.
('Pete', 'Frances')
[Pete] loves his mother very much. Her name is [Cindy]. [Lena] and her sister [Cindy] are the only children in their family. [Lena] called her mother [Frances] to let her know she will be back home soon.
[{('Pete', 'grandmother', 'Frances'): [('Pete', 'mother', 'Cindy'), ('Cindy', 'mother', 'Frances')]}, {('Cindy', 'mother', 'Frances'): [('Cindy', 'sister', 'Lena'), ('Lena', 'mother', 'Frances')]}]
['mother', 'sister', 'mother']