{HEAD ~ The method} 26, wherein the outlet comprises {TAIL ~ a plurality} of sharp conducting tips 
{ HEAD ~ The method } 26 , wherein the outlet comprises { TAIL ~ a plurality } of sharp conducting tips
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH