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