sentences:  Because of its mountainous nature and the numerous waves of migration from north and central China in the course of history, Fujian is one of the most culturally and linguistically diverse places in all ethnic Chinese areas of China.Local dialects can become unintelligible within , and the regional cultures and ethnic composition can be completely different from each other as well.This is reflected in the expression that "if you drive five miles in Fujian the culture changes, and if you drive ten miles, the language does".