Q: Passage: Ngô (Vietnamese pronunciation: ( ŋo) ) is a Vietnamese surname, related to the Chinese surnames Ng and Wu.

Question: Based on this passage, where does the last name ngo come from?
Let's give stream of consciousness below

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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To answer the above question, the relevant sentence is: Ngô (Vietnamese pronunciation: ( ŋo) ) is a Vietnamese surname, related to the Chinese surnames Ng and Wu. So the answer is Vietnamese.