Original sentence: The Republic of Madagascar, formerly the Malagasy Republic, is an island nation in the Indian Ocean off the southeastern coast of Africa.The main island, also called Madagascar, is the fourth-largest island in the world, and is home to 5% of the world's plant and animal species, of which more than 80% are endemic to Madagascar
Edited sentence: The Island of Madagascar is the fourth-largest island in the world, and is home to 5% of the world's plant and animal species, of which more than 80% are endemic to Madagascar.The Republic of Madagascar, formerly the Malagasy Republic, is a sovereign island nation located in the Indian Ocean off the southeastern coast of Africa