{HEAD ~ code} programmed to receive {TAIL ~ the response information} from the direct file system access engine 
programmed to receive
{ HEAD ~ code } programmed to receive { TAIL ~ the response information } from the direct file system access engine
HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH