A package identifier for a package from which {HEAD ~ an application} is installed on {TAIL ~ a computing device} is obtained 
is installed on
A package identifier for a package from which { HEAD ~ an application } is installed on { TAIL ~ a computing device } is obtained
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH