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