{{1, 0, 0, 1/3, 0, 1, -2/3, 0, -1/3, 0, 1/3, 1/3, -2/3}, 
 {0, 1, 1/3, 0, 0, 1, 0, -2/3, 0, -1/3, 0, 0, -2/3}, 
 {0, 0, 0, 0, 1, 3, 0, 0, 0, 0, 0, 0, -2}}
