A determination is made of relative priorities of {TAIL ~ the subgroups} and a quorum is awarded to {HEAD ~ the subgroup} having a highest relative priority 
A determination is made of relative priorities of { TAIL ~ the subgroups } and a quorum is awarded to { HEAD ~ the subgroup } having a highest relative priority
OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH