Simplify the following text for a Grade 7 native English-speaking person.
Original: There are many political parties in Zanzibar , but the main Parties are the Chama Cha Mapinduzi ( CCM ) and the Civic United Front ( CUF ) .
Simplified: the main Parties are the Chama Cha Mapinduzi ( CCM ) and the Civic United Front ( CUF ) .