alpha
csv
wkt,key1,key2
"POINT(3.3 0)",foo,1
"POINT(6.7 0)",bar,2
beta
csv
wkt,name1,ref1,name2,ref2
"LINESTRING(0 -0.6, 10 -0.6)",One,1,Two,2
"LINESTRING(0 -1.2, 10 -1.2)",One,1,Two,2
"LINESTRING(0 -1.8, 10 -1.8)",One,1,Two,2
"LINESTRING(0 -2.4, 10 -2.4)",One,1,Two,2
gamma
csv
wkt,name1,ref1,name2,ref2
"LINESTRING(0 0.6, 10 0.6)",One,1,Two,2
"LINESTRING(0 1.2, 10 1.2)",One,1,Two,2
"LINESTRING(0 1.8, 10 1.8)",One,1,Two,2
"LINESTRING(0 2.4, 10 2.4)",One,1,Two,2
frame
csv
wkt,nr
"POINT(0 5)",1
"POINT(0 -5)",2
"POINT(10 5)",3
"POINT(10 -5)",4