The identification data input unit inputs {TAIL ~ the identification data} stored in {HEAD ~ the log data storage unit} 
The identification data input unit inputs { TAIL ~ the identification data } stored in { HEAD ~ the log data storage unit }
OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD