wherein, when replacing the intended profile with the reference profile, {HEAD ~ each} of the intended profile is replaced with {TAIL ~ the reference profile}, respectively 
wherein , when replacing the intended profile with the reference profile , { HEAD ~ each } of the intended profile is replaced with { TAIL ~ the reference profile } , respectively
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH