[David] borrowed some money from her brother [Joshua]. [Hugh] has two siblings. His brother [Joshua] and sister [Lena]
('David', 'Lena')
[David] borrowed some money from her brother [Joshua]. [Hugh] has two siblings. His brother [Joshua] and sister [Lena]
[{('David', 'sister', 'Lena'): [('David', 'brother', 'Joshua'), ('Joshua', 'sister', 'Lena')]}, {('Joshua', 'sister', 'Lena'): [('Joshua', 'brother', 'Hugh'), ('Hugh', 'sister', 'Lena')]}]
['brother', 'brother', 'sister']