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