Text, images, tables, links and the like are represented in {HEAD ~ the memory structure}, which may be maintained in {TAIL ~ databases} for eventual editing 
Text , images , tables , links and the like are represented in { HEAD ~ the memory structure } , which may be maintained in { TAIL ~ databases } for eventual editing
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH