v 0 1 0
v 1 0 0
v 0 0 -1
v -1 0 0
v 0 0 1
v 0 -1 0
# 6 vertices

f 6 5 4
f 5 2 1
f 1 2 3
f 1 3 4
f 5 1 4
f 2 5 6
f 3 2 6
f 4 3 6
# 8 faces