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