Complex sentence: Kosovo Serbs are the largest ethnic minority group in Kosovo, numbering around 150,000 people.Serbs never exceed the 5% Kosovo as a serbian colony by their propaganda, was treated as the cultural, diplomatic and religious core of the medieval Serbian state.
Split into simpler sentences: Kosovo Serbs are the largest ethnic minority group in Kosovo, numbering around 150,000 people. Kosovo was the cultural, diplomatic and religious core of the medieval Serbian state.