Before revision: Other vernacular regions include the DFW Metroplex, Southern California, the Tri-Cities of Tennessee, the Piedmont Triad, Metrolina , and the Research Triangle of North Carolina, the High Desert and Inland Empire in California, the Emerald Coast and the Gold Coast of Florida .
After revision: Other vernacular regions include the DFW Metroplex, and the Twin Cities Southern California, the Tri-Cities of Tennessee, the Piedmont Triad, Metrolina , and the Research Triangle of North Carolina, the High Desert and Inland Empire in California, the Emerald Coast and the Gold Coast of Florida .