{TAIL ~ The surface portions} are transparent, scatter or reflect incident light or diffract the incident light at {HEAD ~ microscopic relief structures}  
{ TAIL ~ The surface portions } are transparent , scatter or reflect incident light or diffract the incident light at { HEAD ~ microscopic relief structures }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH