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