0 0 0 a
1/2 0 1/2 a
0 1/2 0 a
1/2 1/2 1/2 a
0 0 1/2 b
1/2 0 0 b
0 1/2 1/2 b
1/2 1/2 0 b
x 1/4 z c
-x+1/2 3/4 z+1/2 c
-x 3/4 -z c
x+1/2 1/4 -z+1/2 c
x y z d
-x+1/2 -y z+1/2 d
-x y+1/2 -z d
x+1/2 -y+1/2 -z+1/2 d
-x -y -z d
x+1/2 y -z+1/2 d
x -y+1/2 z d
-x+1/2 y+1/2 z+1/2 d