[Francisco] called his brother, [Joshua], to confirm when [Joshua]'s sister, [Cindy], was coming to the dinner. [Francisco] was having an argument with her sister, [Lena].
('Cindy', 'Lena')
[Francisco] called his brother, [Joshua], to confirm when [Joshua]'s sister, [Cindy], was coming to the dinner. [Francisco] was having an argument with her sister, [Lena].
[{('Cindy', 'sister', 'Lena'): [('Cindy', 'brother', 'Joshua'), ('Joshua', 'sister', 'Lena')]}, {('Joshua', 'sister', 'Lena'): [('Joshua', 'brother', 'Francisco'), ('Francisco', 'sister', 'Lena')]}]
['brother', 'brother', 'sister']