Complex sentence: Marinko Rokvić (Маринко Роквић) is a Bosnian folk singer, born in Bosanski Petrovac, Bosnia and Herzegovina popular in Serbia and Bosnia and Herzegovina (26 June 2010).
Split into simpler sentences: Marinko Rokvić (Маринко Роквић) is a Bosnian folk singer, born in Bosanski Petrovac, Bosnia and Herzegovina. He's popular in Serbia and Bosnia and Herzegovina (26 June 2010).