These additional types of SIDs can be used in various conventional manners to control {HEAD ~ access} to {TAIL ~ resources} 
to
These additional types of SIDs can be used in various conventional manners to control { HEAD ~ access } to { TAIL ~ resources }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL