[Harold]'s daughter [Beverly] is a professional tennis player. [Beverly]'s brother [Dorothy] is her manager. [Harold]'s daughter, [Marie], was busy caring for her son, [John], and could n't take his call.
('Dorothy', 'John')
[Harold]'s daughter [Beverly] is a professional tennis player. [Beverly]'s brother [Dorothy] is her manager. [Harold]'s daughter, [Marie], was busy caring for her son, [John], and could n't take his call.
[{('Dorothy', 'nephew', 'John'): [('Dorothy', 'sister', 'Marie'), ('Marie', 'son', 'John')]}, {('Dorothy', 'sister', 'Marie'): [('Dorothy', 'sister', 'Beverly'), ('Beverly', 'sister', 'Marie')]}, {('Beverly', 'sister', 'Marie'): [('Beverly', 'father', 'Harold'), ('Harold', 'daughter', 'Marie')]}]
['sister', 'father', 'daughter', 'son']