{HEAD ~ The invention} furthermore relates to {TAIL ~ manual pliers}, the wear of which is monitored 
relates to
{ HEAD ~ The invention } furthermore relates to { TAIL ~ manual pliers } , the wear of which is monitored
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH