argument : LocLog1
A1 "Current location of user is logged 
    when 'update' action is performed by the user" {
    supported by
        F1 "The GPS unit always gives 
		    the current location accurately"
        F2
"The device interface never 
		    indicates to the machine that 
		    the user has given the 'update'
		    instruction when the user has not"
        
        F3 "The Wifi connection never 
		    fails to relay the log entry"

}