Because of {TAIL ~ the extension} of the middle spacers 209 beyond the edges of the base sheets, the face coating strips take on {HEAD ~ a well defined molded shape} 
Because of
Because of { TAIL ~ the extension } of the middle spacers 209 beyond the edges of the base sheets , the face coating strips take on { HEAD ~ a well defined molded shape }
REL REL 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 HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD