[Anna] is looking for a good gift for her sister [Wilhelmina]. [Leonard]'s brother [Pete] is a smuggler. He learned how from his sister [Anna].
('Leonard', 'Wilhelmina')
[Leonard]'s brother [Pete] is a smuggler. He learned how from his sister [Anna]. [Anna] is looking for a good gift for her sister [Wilhelmina].
[{('Leonard', 'sister', 'Wilhelmina'): [('Leonard', 'sister', 'Anna'), ('Anna', 'sister', 'Wilhelmina')]}, {('Leonard', 'sister', 'Anna'): [('Leonard', 'brother', 'Pete'), ('Pete', 'sister', 'Anna')]}]
['brother', 'sister', 'sister']