{TAIL ~ Projectors} are arranged on, in, or about the structure to project {HEAD ~ light} toward the object 
{ TAIL ~ Projectors } are arranged on , in , or about the structure to project { HEAD ~ light } toward the object
TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH