The System 15 wherein {HEAD ~ the central controller} is operable to run {TAIL ~ the second program} to: 
is operable to run
The System 15 wherein { HEAD ~ the central controller } is operable to run { TAIL ~ the second program } to :
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH