Given a text, write a compressed version of it in a single sentence.

Q: The word Yiddish derives from the German judisch ' Jewish. ' The principal parent of Yiddish is High German, the form of German encountered by Jewish settlers from northern France in the eleventh century.

A: Yiddish derives from the German judisch 'Jewish. Principal parent of Yiddish is High German, the form encountered by Jewish settlers from northern France
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Q: Carl Soderstrom wondered whether "alcohol problems" referred to the spectrum of drinking problems or the medical problems associated with drinking.

A: Carl Soderstrom wondered whether "alcohol problems" referred to medical problems as well.
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Q: But before we get to the science, let me introduce a pet theory of mine: that there was an ancient link between the Northwest Indians and the Norsemen.

A:
Before we get to the science, a theory is: there was a link between the Northwest Indians and Norsemen.
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