1 0 0 0 0 1 0 0 0 0 1 0
-1 0 0 3/4 0 0 -1 3/4 0 -1 0 3/4
1 0 0 0 0 -1 0 0 0 0 -1 3/2
-1 0 0 3/4 0 0 1 -3/4 0 1 0 3/4