Which place is it?
It is a yard.
   src        edge_attr  dst
0    0      in front of    9
1    0   to the left of   15
2    0          holding   14
3    2  to the right of    6
4    4               in    8
5    6   to the left of    2
6    9           behind    0
7   15  to the right of    0
8   15               of    3