[Nettie] and her sister [Karen] played golf together. [Nettie] won easily. [Beverly] took her son [Paul] to the grocery store. [Beverly]'s daughter [Karen] stayed home instead. [Harold] loves taking his daughter's son to baseball games. His name is [Paul].
('Harold', 'Nettie')
[Harold] loves taking his daughter's son to baseball games. His name is [Paul]. [Beverly] took her son [Paul] to the grocery store. [Beverly]'s daughter [Karen] stayed home instead. [Nettie] and her sister [Karen] played golf together. [Nettie] won easily.
[{('Harold', 'granddaughter', 'Nettie'): [('Harold', 'granddaughter', 'Karen'), ('Karen', 'sister', 'Nettie')]}, {('Harold', 'granddaughter', 'Karen'): [('Harold', 'grandson', 'Paul'), ('Paul', 'sister', 'Karen')]}, {('Paul', 'sister', 'Karen'): [('Paul', 'mother', 'Beverly'), ('Beverly', 'daughter', 'Karen')]}]
['grandson', 'mother', 'daughter', 'sister']