[Beverly] baked a cake for her son [Michael]. [Beverly]'s sister, [Tracy], recently started acting. [Harold] thinks the world of his grandson [Michael]. [Harold] was happy that his son [Louis] was doing well in college.
('Tracy', 'Louis')
[Beverly]'s sister, [Tracy], recently started acting. [Beverly] baked a cake for her son [Michael]. [Harold] thinks the world of his grandson [Michael]. [Harold] was happy that his son [Louis] was doing well in college.
[{('Tracy', 'brother', 'Louis'): [('Tracy', 'father', 'Harold'), ('Harold', 'son', 'Louis')]}, {('Tracy', 'father', 'Harold'): [('Tracy', 'sister', 'Beverly'), ('Beverly', 'father', 'Harold')]}, {('Beverly', 'father', 'Harold'): [('Beverly', 'son', 'Michael'), ('Michael', 'grandfather', 'Harold')]}]
['sister', 'son', 'grandfather', 'son']