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