Original sentence: American Renaissance, Council of Conservative Citizens, the National Alliance and National Vanguard are four leading examples in the United States.Anti-racist groups such as the Southern Poverty Law Center have called all of them racist or white supremacist groups
Edited sentence: American Renaissance, Council of Conservative Citizens, the National Alliance and National Vanguard are four leading examples in the United States, but antiracist groups such as the Southern Poverty Law Center prefer to call them racist or white supremacist