Specifically, FIG 8 depicts {TAIL ~ a plurality} of {HEAD ~ spectral regions} denoted as regions A E 
Specifically , FIG 8 depicts { TAIL ~ a plurality } of { HEAD ~ spectral regions } denoted as regions A E
OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH