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: Most Swiss German dialects have rounded front vowels, similar to those used in 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.