[Harold] was proud to attend [Marie]'s graduation. He was very proud to have raised her into a successful young adult. [Robert] went to the park with his father, [Harold]. [Marie] took her son [Mario] to the mall to shop for school clothes. [Mario] was playing golf with his uncle [Antonio].
('Robert', 'Antonio')
[Robert] went to the park with his father, [Harold]. [Harold] was proud to attend [Marie]'s graduation. He was very proud to have raised her into a successful young adult. [Marie] took her son [Mario] to the mall to shop for school clothes. [Mario] was playing golf with his uncle [Antonio].
[{('Robert', 'brother', 'Antonio'): [('Robert', 'father', 'Harold'), ('Harold', 'son', 'Antonio')]}, {('Harold', 'son', 'Antonio'): [('Harold', 'daughter', 'Marie'), ('Marie', 'brother', 'Antonio')]}, {('Marie', 'brother', 'Antonio'): [('Marie', 'son', 'Mario'), ('Mario', 'uncle', 'Antonio')]}]
['father', 'daughter', 'son', 'uncle']