Complex sentence: Two clothed women are separated from the men and adolescent boys and led away, while the prisoners are ordered unload comrades who had already died during transport, forming a mountain of naked corpses next to the railway tracks.
Split into simpler sentences: Two clothed women are separated from the men and adolescent boys and led away. Some captives are ordered unload comrades who had already died during transport, forming a heap of naked corpses next to the railway tracks.