Is the traffic light on the left or on the right side of the photo?
The traffic light is on the right of the image.
    src        edge_attr  dst
0     2   to the left of    4
1     2   to the left of    7
2     3  to the right of   10
3     4  to the right of    2
4     4  to the right of   10
5     4   to the left of    6
6     5   to the left of   11
7     5   to the left of    8
8     6  to the right of    4
9     7   to the left of    8
10    7  to the right of    2
11    7   to the left of   11
12    8  to the right of    5
13    8  to the right of    7
14   10   to the left of    3
15   10   to the left of    4
16   11  to the right of    5
17   11  to the right of    7