Complex sentence: In the 1970s a new class of wines known in the trade as "Super Tuscans" emerged as wines that were made outside DOC/DOCG regulations but were considered of high quality and commanded high prices.
Split into simpler sentences: In the 1970s a new class of wines known in the trade as "Super Tuscans" emerged. These wines were made outside DOC/DOCG regulations but were considered of high quality and commanded high prices.