{HEAD ~ A custom server} may have {TAIL ~ a number} of network products or other test devices connected to it or the custom server may be directly connected to the environment that it will test 
have
{ HEAD ~ A custom server } may have { TAIL ~ a number } of network products or other test devices connected to it or the custom server may be directly connected to the environment that it will test
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH 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 OTH OTH OTH OTH OTH