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