Conducting {HEAD ~ layer} 102 may comprise a layer of metal foil 104 or may comprise {TAIL ~ a mesh} of conductors 106 
comprise
Conducting { HEAD ~ layer } 102 may comprise a layer of metal foil 104 or may comprise { TAIL ~ a mesh } of conductors 106
OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH