{HEAD ~ The invention} also provides {TAIL ~ apparatus} for implementing the method, and security paper useable with the method 
provides
{ HEAD ~ The invention } also provides { TAIL ~ apparatus } for implementing the method , and security paper useable with the method
HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH