original passage: Most Swiss German dialects have rounded front vowels, unlike other High German dialects. Only in Low Alemannic dialects of northwestern Switzerland (mainly Basel) and in Walliser dialects have rounded front vowels been unrounded. In Basel, rounding is being reintroduced because of the influence of other Swiss German dialects.
original sentence: Most Swiss German dialects have rounded front vowels, unlike other High German dialects.
sentence2: By listening to the vowels, would a trained linguist be able to draw a distinction between a German speaker from mountainous Swiss regions and one from the highlands of Austria or Southern Germany?
sentence1: In contrast to the other High German dialects, most of the Swiss German dialects utilize rounded front vowels. Only in Low Alemannic dialects of northwestern Switzerland (mainly Basel) and in Walliser dialects have rounded front vowels been unrounded. In Basel, rounding is being reintroduced because of the influence of other Swiss German dialects.