{HEAD ~ The entire operating cycle} comprising {TAIL ~ all four positionings} of the person P in the area 190 requires about 60 seconds 
{ HEAD ~ The entire operating cycle } comprising { TAIL ~ all four positionings } of the person P in the area 190 requires about 60 seconds
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH