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In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.

Article: Some Chinese shops have stopped selling Japanese goods in protest against Tokyo's approval of a school history book they say  _ Japan's militaristic past.        It was not clear how many Chinese stores had stopped selling Japanese products, but one association official told Renters that the boycott had begun in Shanghai, the country's business center, and the northeast city of Shenyang.        Chinese protests against Japan's bid for a permanent seat in the U.N. Security Council. Millions of Chinese have already signed an online demand against giving Japan a permanent seat.        South Korea also has criticized the Japanese text book decision. The Korean English-language newspaper Korea Times ran an article on Monday criticizing that action.        It said: "A civic education text even has a picture of Tokto( ) as Japanese district on its cover. We cannot help but wonder how many countries in the world would be teaching their children in such wrong words."        It went on to say: "The country is already a global power and should show regional leadership, not by force but by moral superiority. Tokyo doesn't appear to be reaching forward in this direction." 
 Answer: Two.
Output:

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.
user
How many cities which led a boycott of the goods are listed in the passage?