1 0 0 0 0 1 0 0 0 0 1 0
0 0 1 0 0 1 0 0 1 0 0 0
0 0 -1 7/4 0 1 0 0 -1 0 0 7/4
-1 0 0 7/4 0 1 0 0 0 0 -1 7/4