Fa d'Ambô, a Portuguese creole, has vigorous use in Annobón Province, in Malabo (the capital), and among some speakers in Equatorial Guinea's mainland. Many residents of Bioko can also speak Spanish, particularly in the capital, and the local trade language Pichinglis, an English-based creole. Spanish is not spoken much in Annobón. In government and education Spanish is used. Noncreolized Portuguese is used as liturgical language by local Catholics. The Annobonese ethnic community tried to gain membership in the Community of Portuguese Language Countries (CPLP). The government financed an Instituto Internacional da Língua Portuguesa (IILP) sociolinguistic study in Annobón. It documented strong links with the Portuguese creole populations in São Tomé and Príncipe, Cape Verde and Guinea-Bissau.