"Prewitt (3x3x3 -- 3sets -- x -90 y -90)	orientation"
3 3 10
3
-1	1	0	-1
	1	0	-1
	1	0	-1

0	2	0	-2
	2	0	-2
	2	0	-2

1	1	0	-1
	1	0	-1
	1	0	-1
3
-1	 1	 1	 1
	 0	 0	 0
	-1	-1	-1

0	 2	 2	 2
	 0	 0	 0
	-2	-2	-2

1	 1	 1	 1
	 0	 0	 0
	-1	-1	-1
2
-1	-1	-1	-1
	-2	-2	-2
	-1	-1	-1

1	1	1	1
	2	2	2
	1	1	1