[Lena]'s sister [Lynn] and daughter [Tina] went sledding with [Lynn]'s brother, [Francisco].
('Tina', 'Francisco')
[Lena]'s sister [Lynn] and daughter [Tina] went sledding with [Lynn]'s brother, [Francisco].
[{('Tina', 'uncle', 'Francisco'): [('Tina', 'mother', 'Lena'), ('Lena', 'brother', 'Francisco')]}, {('Lena', 'brother', 'Francisco'): [('Lena', 'sister', 'Lynn'), ('Lynn', 'brother', 'Francisco')]}]
['mother', 'sister', 'brother']