<human>: Q: What work did Von Nemann do in Berlin in 1930 and Princeton 1935 - 39?
 A: In a short list of facts about his life he submitted to the National Academy of Sciences, he stated "The part of my work I consider most essential is that on quantum mechanics, which developed in Göttingen in 1926, and subsequently in Berlin in 1927–1929.
 Does the answer correctly answer the question

OPTIONS:
- yes
- no
<bot>: no