{HEAD ~ Selected portions} of {TAIL ~ a glass sheet} are heated to elevated temperatures and offset, i.e. reformed, relative to the remaining portions of the glass sheet while maintaining the optical properties of the remaining portions of the glass sheet 
of
{ HEAD ~ Selected portions } of { TAIL ~ a glass sheet } are heated to elevated temperatures and offset , i.e. reformed , relative to the remaining portions of the glass sheet while maintaining the optical properties of the remaining portions of the glass sheet
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH