{HEAD ~ The conductive material} is an epoxy cement based conductor, {TAIL ~ preferably silver}, printed or painted directly on to the substrate 
is
{ HEAD ~ The conductive material } is an epoxy cement based conductor , { TAIL ~ preferably silver } , printed or painted directly on to the substrate
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH