[Beverly] and her sister [Robert] went to the ice cream shop. [Tracy]'s niece [Karen] was a massive fan of Pokemon. [Beverly] liked to take her son [Samuel] and his sister [Karen] out to the park whenever she had the time.
('Robert', 'Tracy')
[Beverly] and her sister [Robert] went to the ice cream shop. [Beverly] liked to take her son [Samuel] and his sister [Karen] out to the park whenever she had the time. [Tracy]'s niece [Karen] was a massive fan of Pokemon.
[{('Robert', 'sister', 'Tracy'): [('Robert', 'sister', 'Beverly'), ('Beverly', 'sister', 'Tracy')]}, {('Beverly', 'sister', 'Tracy'): [('Beverly', 'daughter', 'Karen'), ('Karen', 'aunt', 'Tracy')]}, {('Beverly', 'daughter', 'Karen'): [('Beverly', 'son', 'Samuel'), ('Samuel', 'sister', 'Karen')]}]
['sister', 'son', 'sister', 'aunt']