Complex sentence: Italy also has embassies in the following cities, Berlin, Frankfurt, Freiburg, Hamburg, Hanover, Munich, Nuremberg, Saarbrücken, and Stuttgart while Germany has embassies in Rome, Milan and Naples.
Split into simpler sentences: Italy also has embassies in the following cities, Berlin, Frankfurt, Freiburg, Hamburg, Hanover, Munich, Nuremberg, Saarbrücken, and Stuttgart. While Germany has embassies in Rome, Milan and Naples.