[Harold] took his son [Robert] fishing. [Harold] and [Robert] stopped to give [Robert]'s sister, [Tracy], some fish. [Tracy] and her son [Kevin] had lunch together at a local Chinese restaurant. [Kevin] loves to play baseball with his dad, [Antonio].
('Antonio', 'Harold')
[Kevin] loves to play baseball with his dad, [Antonio]. [Tracy] and her son [Kevin] had lunch together at a local Chinese restaurant. [Harold] took his son [Robert] fishing. [Harold] and [Robert] stopped to give [Robert]'s sister, [Tracy], some fish.
[{('Antonio', 'father', 'Harold'): [('Antonio', 'brother', 'Robert'), ('Robert', 'father', 'Harold')]}, {('Antonio', 'brother', 'Robert'): [('Antonio', 'son', 'Kevin'), ('Kevin', 'uncle', 'Robert')]}, {('Kevin', 'uncle', 'Robert'): [('Kevin', 'mother', 'Tracy'), ('Tracy', 'brother', 'Robert')]}]
['son', 'mother', 'brother', 'father']