Next, energy is emitted from {HEAD ~ a source} sufficient to heat {TAIL ~ tissue} to form a denatured proteinaceous substance 
sufficient to heat
Next , energy is emitted from { HEAD ~ a source } sufficient to heat { TAIL ~ tissue } to form a denatured proteinaceous substance
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH