Complex sentence: The nation comprises the island of Madagascar as well as numerous peripheral islands and is estimated to have just over 22 million people (as of 2012), most of whom live on less than two dollars a day.
Split into simpler sentences: The nation comprises the island of Madagascar as well as numerous peripheral islands. Covering an area of, the nation is estimated to have just over 22 million people (as of 2012), most of whom live on less than two dollars a day.