[Dennis] has a happy life. He loves his family, even when he fights sometimes with them. [Natalia] is the sister of [Dennis], and he usually gets along with her, however, [Dennis] is also the brother of [Jennifer], and they fight every now and then.
('Jennifer', 'Natalia')
[Dennis] has a happy life. He loves his family, even when he fights sometimes with them. [Natalia] is the sister of [Dennis], and he usually gets along with her, however, [Dennis] is also the brother of [Jennifer], and they fight every now and then.
[{('Jennifer', 'sister', 'Natalia'): [('Jennifer', 'brother', 'Dennis'), ('Dennis', 'sister', 'Natalia')]}]
['brother', 'sister']