[Martha] went fishing with her father [Roy] and brother [Herman] last weekend. They caught a dozen sea bass.
('Roy', 'Herman')
[Martha] went fishing with her father [Roy] and brother [Herman] last weekend. They caught a dozen sea bass.
[{('Roy', 'son', 'Herman'): [('Roy', 'daughter', 'Martha'), ('Martha', 'brother', 'Herman')]}]