{HEAD ~ The message} is stored in {TAIL ~ the hierarchical message store} at the one such index node and the one such storage node 
{ HEAD ~ The message } is stored in { TAIL ~ the hierarchical message store } at the one such index node and the one such storage node
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH