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