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