{HEAD ~ The device} 6, wherein the vertical projection comprises a stem and a top portion, and wherein {TAIL ~ the stem} is slimmer than the top portion 
wherein
{ HEAD ~ The device } 6 , wherein the vertical projection comprises a stem and a top portion , and wherein { TAIL ~ the stem } is slimmer than the top portion
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH