The islands have a conductivity that is substantially greater than {HEAD ~ the conductivity} of {TAIL ~ the resistive layer} 
of
The islands have a conductivity that is substantially greater than { HEAD ~ the conductivity } of { TAIL ~ the resistive layer }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL