Complex sentence: Verdejo is a variety of wine grape that has long been grown in the Rueda winegrowing region of Spain, where it was generally used to make a strongly oxidized, sherry-like wine.
Split into simpler sentences: Verdejo is a variety of wine grape that has long been grown in the Rueda winegrowing region of Spain. For most of this time verdejo was generally used to make a strongly oxidized, sherry-like wine.