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