Optionally, {HEAD ~ brochure blank assembly} may be affixed to the base label by a suitable adhesive or by {TAIL ~ other affixation means} 
affixed by
Optionally , { HEAD ~ brochure blank assembly } may be affixed to the base label by a suitable adhesive or by { TAIL ~ other affixation means }
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL