Are the cars on the left of the photo?
Yes, the cars are on the left of the image.
    src        edge_attr  dst
0     0  to the right of   20
1     0  to the right of    2
2     2  to the right of   12
3     2  to the right of   16
4     2   to the left of    0
5     3  to the right of    9
6     3   to the left of   13
7     5   to the left of   20
8     5  to the right of   21
9     6   to the left of   20
10    8   to the left of   10
11    9   to the left of   20
12    9   to the left of    3
13   10  to the right of    8
14   10  to the right of   20
15   11  to the right of   20
16   12   to the left of   20
17   12   to the left of    2
18   13  to the right of   20
19   13  to the right of    3
20   15  to the right of   20
21   16   to the left of   20
22   16   to the left of    2
23   17   to the left of   20
24   20  to the right of   12
25   20   to the left of    0
26   20   to the left of   13
27   20  to the right of    6
28   20  to the right of    9
29   20   to the left of   11
30   20   to the left of   15
31   20  to the right of   16
32   20  to the right of   17
33   20   to the left of   10
34   20  to the right of    5
35   20  to the right of   21
36   21   to the left of    5
37   21               on   12
38   21   to the left of   20