Different users activity descriptions can be presented to {HEAD ~ a user} even while the user may be disconnected from {TAIL ~ communication networks} 
Different users activity descriptions can be presented to { HEAD ~ a user } even while the user may be disconnected from { TAIL ~ communication networks }
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL