{HEAD ~ Roast coffee extract} is contacted with a water immiscible organic solvent to form decaffeinated extract and {TAIL ~ caffeine} containing spent solvent 
{ HEAD ~ Roast coffee extract } is contacted with a water immiscible organic solvent to form decaffeinated extract and { TAIL ~ caffeine } containing spent solvent
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH