{HEAD ~ The grouping} of documents with the same fingerprint facilitates creation of anti spam rules or identification of web pages from {TAIL ~ particular websites}, for example 
{ HEAD ~ The grouping } of documents with the same fingerprint facilitates creation of anti spam rules or identification of web pages from { TAIL ~ particular websites } , for example
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH