Complex sentence: As new housemates Antti, Iida, Saranna and Stephania were not allowed to nominate or be nominated and lived in Paradise but because she was HoH, Stephania was permitted to nominate.
Split into simpler sentences: As new housemates Antti, Iida, and Saranna were not allowed to nominate or be nominated. Because she was HoH, Stephania was permitted to nominate.