This is accomplished by {HEAD ~ means} of {TAIL ~ a flexible driving system} and a motor which is swingably supported 
of
This is accomplished by { HEAD ~ means } of { TAIL ~ a flexible driving system } and a motor which is swingably supported
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH