Is there a bus or a fence in this photograph?
Yes, there is a bus.
    src        edge_attr  dst
0     0               in   19
1     0               on   19
2     0  to the right of   23
3     0   to the left of    8
4     0   to the left of    1
..  ...              ...  ...
67   22  to the right of    2
68   22  to the right of    4
69   22   to the left of   12
70   23   to the left of    0
71   23  to the right of   10

[72 rows x 3 columns]