{TAIL ~ Light} can be applied through a mask to the graphene layer, where the mask includes {HEAD ~ a pattern} 
{ TAIL ~ Light } can be applied through a mask to the graphene layer , where the mask includes { HEAD ~ a pattern }
TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD