[Antonio] went to the park with his father, [Harold]. [Antonio] was happy that his son [Kevin] was doing well in college. [Laura] and her brother [Kevin] are both adopted from the same family. [Erika] was sewing a sweater for her sister [Laura].
('Harold', 'Erika')
[Antonio] went to the park with his father, [Harold]. [Antonio] was happy that his son [Kevin] was doing well in college. [Laura] and her brother [Kevin] are both adopted from the same family. [Erika] was sewing a sweater for her sister [Laura].
[{('Harold', 'granddaughter', 'Erika'): [('Harold', 'grandson', 'Kevin'), ('Kevin', 'sister', 'Erika')]}, {('Kevin', 'sister', 'Erika'): [('Kevin', 'sister', 'Laura'), ('Laura', 'sister', 'Erika')]}, {('Harold', 'grandson', 'Kevin'): [('Harold', 'son', 'Antonio'), ('Antonio', 'son', 'Kevin')]}]
['son', 'son', 'sister', 'sister']