Some wizards are the products of unions between humans and magical creatures of human or near-human intelligence, such as Fleur Delacour and her sister Gabrielle (both part Veela), Professor Flitwick (a quarter goblin) and Hagrid (half giant). In wizard parlance, a creature with human intelligence – including a person – is called a "being". Known beings capable of breeding with humans includegoblinsgiants, and Veela. Prejudiced wizards (such as Umbridge) often use the insulting term half-breed to refer to mixed-species wizards and werewolves, or other beings such as House elvesmerpeople and centaurs (who are separate species) because of their part-human and part-beast appearances and "near-human intelligence". The Centaurs within the series prefer to exist amongst themselves, with little interaction with humans