The policy adapters transform the single unified method call into {HEAD ~ formats} acceptable by {TAIL ~ each associated policy servers} and place the transformed requests to the associated servers 
acceptable by
The policy adapters transform the single unified method call into { HEAD ~ formats } acceptable by { TAIL ~ each associated policy servers } and place the transformed requests to the associated servers
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH