{HEAD ~ The process} 2 wherein the hydrocarbyl group contains from {TAIL ~ 25 to 250 carbon atoms} 
{ HEAD ~ The process } 2 wherein the hydrocarbyl group contains from { TAIL ~ 25 to 250 carbon atoms }
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL