{HEAD ~ The center region} 34 is divided into two sub regions by a non conductive barrier or {TAIL ~ insulative region} 38 
is divided by
{ HEAD ~ The center region } 34 is divided into two sub regions by a non conductive barrier or { TAIL ~ insulative region } 38
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL OTH OTH OTH OTH REL OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH