#BEGIN {print "@relation intersection"}
BEGIN {IGNORECASE=1; OFS=","}
FNR==1 					{M=Locs=0;  Filenames[FILENAME]++; Files++ }

/@attribute/ { 
	           M++; 
	           if ($2 == "loc") Locs++; 
			   if (Locs > 1) { true }
			   else {
				Want[$2]++; 
				Index[FILENAME,$2]=M; 
				About[$2]=$0
			}}
END {
			for(A in About)
				print Files, A , Want[A]
		}