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Linguistically, Southern Germany corresponds to the Upper German dialects. Southern Germany is culturally and linguistically more similar to German-speaking Switzerland, Austria, and German-speaking South Tyrol than to Central and Northern Germany. A jocular term referring to a cultural boundary defining Bavarian culture is "Weißwurstäquator", i.e. the "equator" dividing Northern Germany from the homeland of the Weißwurst sausage.