[Flavia] and her brother [Danny] watched TV together. [James] was invited to watch too, because [Flavia] is his sister.
('James', 'Danny')
[Flavia] and her brother [Danny] watched TV together. [James] was invited to watch too, because [Flavia] is his sister.
[{('James', 'brother', 'Danny'): [('James', 'sister', 'Flavia'), ('Flavia', 'brother', 'Danny')]}]