[David] asked her husband, [Hugh], and her daughter, [Marie], to help cook dinner. [Hugh]'s sister, [Lena], decided to help out as well.
('Lena', 'Marie')
[David] asked her husband, [Hugh], and her daughter, [Marie], to help cook dinner. [Hugh]'s sister, [Lena], decided to help out as well.
[{('Lena', 'niece', 'Marie'): [('Lena', 'brother', 'Hugh'), ('Hugh', 'daughter', 'Marie')]}, {('Hugh', 'daughter', 'Marie'): [('Hugh', 'wife', 'David'), ('David', 'daughter', 'Marie')]}]
['brother', 'wife', 'daughter']