In this instance, each cross sectional shape of the plurality of conductors may take {HEAD ~ various forms} such as {TAIL ~ rectangular, triangular, circular, or ellipsoidal shape} 
In this instance , each cross sectional shape of the plurality of conductors may take { HEAD ~ various forms } such as { TAIL ~ rectangular , triangular , circular , or ellipsoidal shape }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL