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