{HEAD ~ The tool} can categorize and cluster {TAIL ~ content} by feature, to assemble a library of scenes or scene clusters according to user selected criteria 
cluster
{ HEAD ~ The tool } can categorize and cluster { TAIL ~ content } by feature , to assemble a library of scenes or scene clusters according to user selected criteria
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH