In this manner, {TAIL ~ fair arbitration} is assured for {HEAD ~ other CPUs} contending for control of the system bus 
In this manner , { TAIL ~ fair arbitration } is assured for { HEAD ~ other CPUs } contending for control of the system bus
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH