Are there any lamps on the pole?
No, there is a mirror on the pole.
    src       edge_attr  dst
0     0  to the left of    9
1     0  to the left of   16
2     0  to the left of    5
3     0              of   10
4     0  to the left of    7
..  ...             ...  ...
80   19  to the left of    7
81   19  to the left of    9
82   19  to the left of   15
83   19  to the left of   16
84   21  to the left of    9

[85 rows x 3 columns]