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