Further, the topology service may communicate with {HEAD ~ any kind} of {TAIL ~ database} or data store, where a given database or data store may be local or remotely accessible 
of
Further , the topology service may communicate with { HEAD ~ any kind } of { TAIL ~ database } or data store , where a given database or data store may be local or remotely accessible
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH