Depending on {HEAD ~ the shape} of the space or {TAIL ~ the area} to be secured, the user can adjust the optical arrangement 
of
Depending on { HEAD ~ the shape } of the space or { TAIL ~ the area } to be secured , the user can adjust the optical arrangement
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH