{{b[1], b[2], b[2], b[1] + 2*b[2]}, {-b[1], b[2], b[1]/2 + (3*b[2])/2, b[1]/2 + (3*b[2])/2}, {-b[2], -b[2], b[1] + b[2], b[1] + 3*b[2]}, {-b[2], -b[1] - b[2], b[1]/2 - b[2]/2, b[1]/2 + (5*b[2])/2}, {-1/2*b[1] - (3*b[2])/2, -1/2*b[1] + b[2]/2, -1/2*b[1] + b[2]/2, b[1]/2 + (3*b[2])/2}, {-b[1] - 2*b[2], b[1]/2 - b[2]/2, 2*b[2], b[1]/2 + b[2]/2}, {-b[1] - 3*b[2], -2*b[2], b[1]/2 + b[2]/2, b[1]/2 + b[2]/2}, {-1/2*b[1] - (5*b[2])/2, -1/2*b[1] - b[2]/2, -1/2*b[1] - b[2]/2, b[1]/2 - (3*b[2])/2}, {-1/2*b[1] - (3*b[2])/2, -1/2*b[1] - (3*b[2])/2, -1/2*b[1] - b[2]/2, -1/2*b[1] + (3*b[2])/2}}