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