What is the image showing?
It is showing a highway.
    src        edge_attr  dst
0     0   to the left of    1
1     1  to the right of   13
2     1  to the right of    0
3     2   to the left of   12
4     2   to the left of    7
5     2   to the left of    3
6     2   to the left of   10
7     2  to the right of    8
8     2   to the left of    9
9     3   to the left of   13
10    3   to the left of    7
11    3   to the left of    9
12    3  to the right of   11
13    3  to the right of    2
14    3  to the right of    8
15    4  to the right of    6
16    6               on    5
17    6   to the left of   11
18    6   to the left of    4
19    7   to the left of   13
20    7  to the right of    2
21    7  to the right of    9
22    7  to the right of   10
23    7  to the right of    8
24    7  to the right of    3
25    8   to the left of    9
26    8   to the left of    3
27    8   to the left of   10
28    8   to the left of    7
29    8   to the left of    2
30    9   to the left of   13
31    9  to the right of    2
32    9  to the right of    3
33    9  to the right of    8
34    9   to the left of    7
35   10  to the right of    2
36   10  to the right of    8
37   10   to the left of    7
38   10   to the left of   12
39   10   to the left of   13
40   10        on top of    9
41   11  to the right of    6
42   11   to the left of    3
43   12  to the right of    2
44   12  to the right of   10
45   13  to the right of    3
46   13  to the right of   10
47   13   to the left of    1
48   13  to the right of    9
49   13  to the right of    7