{{1, 0, 0, 0, 2/3, -2/3, -1, -2/3, 0, 1/6, -1/3, -1/3, -1/2, 2/3, 2/3}, 
 {0, 1, 0, 1, 0, -1/3, -2, 0, -2/3, 0, -2/3, -5/6, 0, 1/3, 4/3}, 
 {0, 0, 1, 0, 0, 0, 3, 0, 0, 0, 0, 0, 0, 0, -2}}
