[Beverly] is taking he son [Samuel] and her daughter [Jennifer] to the park. [Marie] was playing hide-and-seek with her sister [Tracy]. [Samuel] went to pick up his uncle from the airport with his uncle's wife [Marie].
('Jennifer', 'Tracy')
[Beverly] is taking he son [Samuel] and her daughter [Jennifer] to the park. [Samuel] went to pick up his uncle from the airport with his uncle's wife [Marie]. [Marie] was playing hide-and-seek with her sister [Tracy].
[{('Jennifer', 'aunt', 'Tracy'): [('Jennifer', 'mother', 'Beverly'), ('Beverly', 'sister', 'Tracy')]}, {('Beverly', 'sister', 'Tracy'): [('Beverly', 'sister', 'Marie'), ('Marie', 'sister', 'Tracy')]}, {('Beverly', 'sister', 'Marie'): [('Beverly', 'son', 'Samuel'), ('Samuel', 'aunt', 'Marie')]}]
['mother', 'son', 'aunt', 'sister']