Simplify the following text for a Grade 9 native English-speaking person.
Original: Puerto Rico has three principal political parties , the Independence Puerto Rican Party ( socialdemocracy ) , New Progressive Party ( PNP ) that is the Puerto Rico statehood party , and the Popular Democratic Party ( PPD ) that is the colonialist party .
Simplified: The Puerto Rican Independence Party seeks independence . In 2007 , a fourth party , the Puerto Ricans for Puerto Rico Party ( PPR ) , was ratified .