I want to know the answer to the following question:
What other parts of East Prussia were transferred after the annexation of Zichenau?
All the background I'm provided with is that "Despite Nazi propaganda presenting all of the regions annexed as possessing significant German populations that wanted reunification with Germany, the Reich's statistics of late 1939 show that only 31,000 out of 994,092 people in this territory were ethnic Germans.[citation needed]". Is that enough to answer the question?
Answer: no