Is this a fire hydrant or a traffic light?
This is a traffic light.
    src        edge_attr  dst
0     0   to the left of    8
1     0   to the left of    1
2     0   to the left of   10
3     1   to the left of    9
4     1  to the right of    0
5     2   to the left of    5
6     2   to the left of    7
7     2   to the left of   11
8     2   to the left of   12
9     2               on   10
10    2  to the right of    4
11    2  to the right of    6
12    4   to the left of    5
13    4   to the left of    2
14    4   to the left of   11
15    4               on    3
16    5  to the right of    4
17    5  to the right of    6
18    5  to the right of    8
19    5  to the right of    2
20    6   to the left of    2
21    6   to the left of    8
22    6   to the left of    5
23    7  to the right of    8
24    7  to the right of    2
25    7               on   12
26    8   to the left of   12
27    8   to the left of    9
28    8   to the left of    7
29    8   to the left of    5
30    8  to the right of    6
31    8  to the right of    0
32    8   to the left of   11
33    9  to the right of    1
34    9               on    9
35    9     displayed on    9
36    9  to the right of    8
37   10  to the right of    0
38   11  to the right of    4
39   11  to the right of    8
40   11  to the right of    2
41   12  to the right of    8
42   12  to the right of    2