v 0 1 0 
v 0 0 1 
v 0 -1 0 
v -1 0 0 
v 0 0 -1 
v 1 0 0
      
f 5 4 1 
f 5 3 4 
f 2 1 4 
f 5 1 6 
f 2 3 6 
f 2 6 1 
f 2 4 3 
f 5 6 3
      
s 3 4 3 0 
s 3 4 2 3 
s 3 1 0 3 
s 3 4 0 5 
s 3 1 2 5 
s 3 1 5 0 
s 3 1 3 2 
s 3 4 5 2