{TAIL ~ The process} comprises treating {HEAD ~ the raw beans} with the ester of an organic acid, in combination with a ketone 
{ TAIL ~ The process } comprises treating { HEAD ~ the raw beans } with the ester of an organic acid , in combination with a ketone
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH