An article of manufacture directs {HEAD ~ a system} for navigating {TAIL ~ an electronic network} to perform the above listed steps 
An article of manufacture directs { HEAD ~ a system } for navigating { TAIL ~ an electronic network } to perform the above listed steps
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH