The apparatus 3, wherein said preferred order is a preferred order for {HEAD ~ interpretation} by {TAIL ~ a human} 
The apparatus 3 , wherein said preferred order is a preferred order for { HEAD ~ interpretation } by { TAIL ~ a human }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL