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