Each of the computing resources may comprise {HEAD ~ a respective unit} of computing functionality available within {TAIL ~ the computing environment} 
available within
Each of the computing resources may comprise { HEAD ~ a respective unit } of computing functionality available within { TAIL ~ the computing environment }
OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL