{TAIL ~ The indicia} are made of a material responsive to {HEAD ~ UV emissions} to render the indicia visible 
{ TAIL ~ The indicia } are made of a material responsive to { HEAD ~ UV emissions } to render the indicia visible
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH