Optionally, {TAIL ~ brochures} may be printed on {HEAD ~ one or both sides} of brochure blank assembly 40 
Optionally , { TAIL ~ brochures } may be printed on { HEAD ~ one or both sides } of brochure blank assembly 40
OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH