{HEAD ~ a layer} of a second conductive metallization on either side of {TAIL ~ the pair} of layers of the electrodisplacive material 
{ HEAD ~ a layer } of a second conductive metallization on either side of { TAIL ~ the pair } of layers of the electrodisplacive material
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH