[Joshua] and his brother [Francisco] were wrestling. [Felicia], [Joshua]'s daughter, was cheering on the competition. [Lena] was playing in the sandbox with her brother [Francisco].
('Lena', 'Felicia')
[Lena] was playing in the sandbox with her brother [Francisco]. [Joshua] and his brother [Francisco] were wrestling. [Felicia], [Joshua]'s daughter, was cheering on the competition.
[{('Lena', 'niece', 'Felicia'): [('Lena', 'brother', 'Joshua'), ('Joshua', 'daughter', 'Felicia')]}, {('Lena', 'brother', 'Joshua'): [('Lena', 'brother', 'Francisco'), ('Francisco', 'brother', 'Joshua')]}]
['brother', 'brother', 'daughter']