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