Which side of the picture is the traffic signal on?
The traffic signal is on the right of the image.
    src        edge_attr  dst
0     2   to the left of   13
1     2       walking in    1
2     2   to the left of    5
3     2   to the left of   15
4     3   to the left of   15
5     3   to the left of    8
6     3  to the right of    4
7     3   to the left of   16
8     3   to the left of   17
9     3   to the left of    5
10    3   to the left of   14
11    3   to the left of   13
12    4   to the left of    3
13    4   to the left of   16
14    4   to the left of   14
15    5  to the right of    2
16    5  to the right of   14
17    5  to the right of   16
18    5  to the right of    8
19    5  to the right of    3
20    7  to the right of   17
21    8   to the left of   15
22    8  to the right of   16
23    8  to the right of    3
24    8   to the left of   13
25    8   to the left of    5
26   10               at   11
27   10   to the left of   12
28   12  to the right of   10
29   13  to the right of    2
30   13  to the right of    3
31   13  to the right of   14
32   13  to the right of    8
33   13  to the right of   16
34   14  to the right of    4
35   14  to the right of    3
36   14   to the left of   15
37   14   to the left of   13
38   14   to the left of    5
39   15  to the right of   14
40   15  to the right of    2
41   15  to the right of    3
42   15  to the right of    8
43   15  to the right of   16
44   16   to the left of   13
45   16   to the left of    5
46   16  to the right of    4
47   16   to the left of    8
48   16  to the right of    3
49   16   to the left of   15
50   17   to the left of    7
51   17  to the right of    3