The apparatus 9, wherein {HEAD ~ said converting means} is {TAIL ~ part} of a single device 
is
The apparatus 9 , wherein { HEAD ~ said converting means } is { TAIL ~ part } of a single device
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH