The manager computer can communicate with {HEAD ~ the number} of {TAIL ~ UPS systems}, via the computer network system, to obtain inventory and status information related to each of the UPS systems 
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The manager computer can communicate with { HEAD ~ the number } of { TAIL ~ UPS systems } , via the computer network system , to obtain inventory and status information related to each of the UPS systems
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH