[Francisco] and her sister [Lena] decided to take a trip to Mexico together. [Lena] looked all over the house for her son [Irvin], but could n't find him. That's because [Irvin] was outside in the back yard, playing baseball with his brother [Theodore].
('Theodore', 'Francisco')
[Lena] looked all over the house for her son [Irvin], but could n't find him. That's because [Irvin] was outside in the back yard, playing baseball with his brother [Theodore]. [Francisco] and her sister [Lena] decided to take a trip to Mexico together.
[{('Theodore', 'uncle', 'Francisco'): [('Theodore', 'mother', 'Lena'), ('Lena', 'brother', 'Francisco')]}, {('Theodore', 'mother', 'Lena'): [('Theodore', 'brother', 'Irvin'), ('Irvin', 'mother', 'Lena')]}]
['brother', 'mother', 'brother']