{TAIL ~ A bar code scanner} in the second sorting pass scans bar codes of each printed bar code and decodes {HEAD ~ said bar code} 
{ TAIL ~ A bar code scanner } in the second sorting pass scans bar codes of each printed bar code and decodes { HEAD ~ said bar code }
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD