Complex sentence: German submarine "U- 17" was a Type IIB U-boat of the German "Kriegsmarine", built in Germaniawerft, Kiel, laid down on July 1,1935 and commissioned on December 3,1935 under command of Werner Fresdorf.
Split into simpler sentences: German submarine "U- 17" was a Type IIB U-boat of the German "Kriegsmarine". It was built in Germaniawerft, Kiel, where it was laid down on July 1 1935 and commissioned on December 3 1935, under the command of Werner Fresdorf.