{HEAD ~ The electrode assembly} has {TAIL ~ an active electrode} and, set back from the active electrode, a return electrode coated with an insulative dielectric layer 
{ HEAD ~ The electrode assembly } has { TAIL ~ an active electrode } and , set back from the active electrode , a return electrode coated with an insulative dielectric layer
HEAD 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