The data processor also has {HEAD ~ a command processor} for processing commands received from {TAIL ~ the dedicated modules} 
The data processor also has { HEAD ~ a command processor } for processing commands received from { TAIL ~ the dedicated modules }
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL