[Beverly] liked to play hide and seek with her son [Samuel]. [Pedro] was sad to learn that his sister [Beverly] was not going to make it to dinner like they had planned. [Pedro] is [Antonio]'s Brother. [Samuel] does not like being around his uncle, [Robert]'s, company.
('Antonio', 'Robert')
[Pedro] is [Antonio]'s Brother. [Pedro] was sad to learn that his sister [Beverly] was not going to make it to dinner like they had planned. [Beverly] liked to play hide and seek with her son [Samuel]. [Samuel] does not like being around his uncle, [Robert]'s, company.
[{('Antonio', 'brother', 'Robert'): [('Antonio', 'sister', 'Beverly'), ('Beverly', 'brother', 'Robert')]}, {('Antonio', 'sister', 'Beverly'): [('Antonio', 'brother', 'Pedro'), ('Pedro', 'sister', 'Beverly')]}, {('Beverly', 'brother', 'Robert'): [('Beverly', 'son', 'Samuel'), ('Samuel', 'uncle', 'Robert')]}]
['brother', 'sister', 'son', 'uncle']