Control may then proceed to Step: 132 where the controller 28 may update one or more of {HEAD ~ the operational relationships} associated with {TAIL ~ the machine} 
Control may then proceed to Step : 132 where the controller 28 may update one or more of { HEAD ~ the operational relationships } associated with { TAIL ~ the machine }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL