{HEAD ~ The system} includes an uninterruptible power supply manager computer coupled to a number of {TAIL ~ user computers} via a computer network 
{ HEAD ~ The system } includes an uninterruptible power supply manager computer coupled to a number of { TAIL ~ user computers } via a computer network
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH