Complex sentence: Serbia will participate in the Eurovision Song Contest 2013 in Malmö, Sweden, and will select their entry through "Beosong", a national final format consisting of a semi-final and a final, organised by the Serbian broadcaster Radio-televizija Srbije (RTS).
Split into simpler sentences: Serbia will participate in the Eurovision Song Contest 2013 in Malmö, Sweden. The Serbian entry was selected their entry through "Beosong 2013", a national final format consisting of a semi-final and a final, organised by the Serbian broadcaster Radio-televizija Srbije (RTS).