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