Storage locations and {TAIL ~ sub trees} may be assigned to tracking cells in {HEAD ~ a distributed system architecture} 
Storage locations and { TAIL ~ sub trees } may be assigned to tracking cells in { HEAD ~ a distributed system architecture }
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD