Is it an indoors or outdoors picture?
It is outdoors.
   src        edge_attr  dst
0    0  to the right of    3
1    0  to the right of    2
2    1               in    3
3    1  to the right of    3
4    2  to the right of    3
5    2   to the left of    0
6    3   to the left of    0
7    3   to the left of    2
8    3   to the left of    1