{{1, 0, 0, -2/3, -1, -5/6, 0, 0, 1/3, 1/2, 5/6, 1/6, 0, 0, -1/6, -1/6}, 
 {0, 1, 1/3, 0, 1, 0, -5/6, -1/3, 0, 0, -11/6, 0, 1/6, 1/6, 0, 5/6}}
