forming a second conductive layer on said exposed walls of said conductive material and {HEAD ~ the exposed surfaces} of {TAIL ~ said structure} 
of
forming a second conductive layer on said exposed walls of said conductive material and { HEAD ~ the exposed surfaces } of { TAIL ~ said structure }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL