{HEAD ~ The transistor} has {TAIL ~ at least one semiconducting carbon nanotube} that is electrically coupled between the source and drain electrodes 
{ HEAD ~ The transistor } has { TAIL ~ at least one semiconducting carbon nanotube } that is electrically coupled between the source and drain electrodes
HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH