{HEAD ~ Each edge} of {TAIL ~ each row} includes one or more middle conductive segments disposed between two end conductive segments 
{ HEAD ~ Each edge } of { TAIL ~ each row } includes one or more middle conductive segments disposed between two end conductive segments
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH