{HEAD ~ The method} continues with acquiring {TAIL ~ data values} for a set of metrics for each field web site 
{ HEAD ~ The method } continues with acquiring { TAIL ~ data values } for a set of metrics for each field web site
HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH