Complex sentence: Jewel sold the majority of the money-losing chain to May Department Stores in 1978; though most of the chain's locations were rapidly converted to Venture, the Dixie Square location remained closed.
Split into simpler sentences: Jewel sold the majority of the money-losing chain to May Department Stores in 1978. While most of the chain's locations were rapidly converted to Venture, the Dixie Square location remained closed.