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