{{1, 0, 0, 0, 2/3, -2/3, -1, -1/3, 0, 1/6, -1/6, -1/3, -1/3, 1/3, 1/3}, 
 {0, 1, 0, 1, 0, -1/3, -2, 0, -1/3, 0, -1/3, -1/2, 0, 1/6, 2/3}, 
 {0, 0, 1, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, -1}}
