In {HEAD ~ some implementations}, {TAIL ~ a plurality} of computing resources available within a computing environment are identified 
In { HEAD ~ some implementations } , { TAIL ~ a plurality } of computing resources available within a computing environment are identified
OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH