Original sentence: In addition to the island of Mauritius, the republic includes the islands of St.The Republic of Mauritius is an island nation off the coast of the African continent in the southwest Indian Ocean, about 900 kilometres (560 mi) east of Madagascar
Edited sentence: In addition to the Island of Mauritius, the republic includes the islands of St.The Republic of Mauritius is a sovereign island nation located in the southwest Indian Ocean about  east of Madagascar