{HEAD ~ A computer program} embodied in {TAIL ~ a tangible computer} readable medium for performing the method 20 
embodied in
{ HEAD ~ A computer program } embodied in { TAIL ~ a tangible computer } readable medium for performing the method 20
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH