[David] has been waiting around all day for her son, [Brandon]. [David] is a woman with a sister named [Lena]. [Brandon]'s uncle [Joshua] used to be the drummer for Toto.
('Lena', 'Joshua')
[David] is a woman with a sister named [Lena]. [David] has been waiting around all day for her son, [Brandon]. [Brandon]'s uncle [Joshua] used to be the drummer for Toto.
[{('Lena', 'brother', 'Joshua'): [('Lena', 'sister', 'David'), ('David', 'brother', 'Joshua')]}, {('David', 'brother', 'Joshua'): [('David', 'son', 'Brandon'), ('Brandon', 'uncle', 'Joshua')]}]
['sister', 'son', 'uncle']