The online web site analysis tool is defined to perform {HEAD ~ data mining operations} on the search engine usage logs to find/identify {TAIL ~ the field web sites} associated with the target web site 
The online web site analysis tool is defined to perform { HEAD ~ data mining operations } on the search engine usage logs to find / identify { TAIL ~ the field web sites } associated with the target web site
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH REL REL OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH