[Pedro] borrowed some money from his sister [Tracy]. [Harold] was delighted to watch his son [Pedro] steal third base in the Championship baseball game. [Antonio] bought his daughter [Emma] and his wife [Tracy] flowers.
('Harold', 'Emma')
[Harold] was delighted to watch his son [Pedro] steal third base in the Championship baseball game. [Pedro] borrowed some money from his sister [Tracy]. [Antonio] bought his daughter [Emma] and his wife [Tracy] flowers.
[{('Harold', 'granddaughter', 'Emma'): [('Harold', 'daughter', 'Tracy'), ('Tracy', 'daughter', 'Emma')]}, {('Tracy', 'daughter', 'Emma'): [('Tracy', 'husband', 'Antonio'), ('Antonio', 'daughter', 'Emma')]}, {('Harold', 'daughter', 'Tracy'): [('Harold', 'son', 'Pedro'), ('Pedro', 'sister', 'Tracy')]}]
['son', 'sister', 'husband', 'daughter']