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