The number of {HEAD ~ pages} not containing {TAIL ~ interpretive instructions} are minimized to streamline the operation of setting the uncacheable attribute flags 
not containing
The number of { HEAD ~ pages } not containing { TAIL ~ interpretive instructions } are minimized to streamline the operation of setting the uncacheable attribute flags
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH