Complex sentence: Georgia said it handed over 5 Russian servicemen, in exchange for 13 Georgians soldiers and 2 civilians, but said that it suspected Russia of holding 2 more Georgians prisoner.
Split into simpler sentences: Georgia said it handed over 5 Russian servicemen, in exchange for 15 Georgians, including 2 civilians. But Georgian official also said that it suspected Russia of holding 2 more Georgians prisoner.