Typically, in so doing, {HEAD ~ attributes} associated with {TAIL ~ pages} in physical memory are employed 
associated with
Typically , in so doing , { HEAD ~ attributes } associated with { TAIL ~ pages } in physical memory are employed
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH