amb_space 4
vertices 9
1 2 1 2 1
3 1 1 3 1
2 5 1 0 1
0 2 4 3 1
0 2 3 4 1
1 0 3 4 1
5 1 0 1 1
2 4 1 5 1
2 2 2 4 1
cone 4
1 0 0 0
0 1 0 0
0 0 1 0
0 0 0 1