On which side of the image is the bus?
The bus is on the right of the image.
    src        edge_attr  dst
0     0   to the left of    6
1     1               on   12
2     1   to the left of    6
3     1   to the left of   13
4     1   to the left of   12
5     1  to the right of   16
6     1               in   19
7     2               in   19
8     2   to the left of    8
9     2               on   12
10    2   to the left of   20
11    3   to the left of   20
12    3  to the right of    6
13    5  to the right of   12
14    5  to the right of   19
15    6  to the right of   16
16    6  to the right of    7
17    6   to the left of    3
18    6  to the right of    1
19    6  to the right of    0
20    7               of    6
21    7   to the left of    6
22    8  to the right of   12
23    8  to the right of    2
24    8           riding   10
25   10  to the right of   17
26   10  to the right of   12
27   10               on    5
28   11   to the left of   20
29   12  to the right of    1
30   12   to the left of   10
31   12  to the right of   13
32   12   to the left of    5
33   12   to the left of    8
34   12  to the right of   16
35   12   to the left of   17
36   13               at   15
37   13  to the right of   16
38   13   to the left of   12
39   13  to the right of    1
40   13               on   12
41   13               in   19
42   15   to the left of   20
43   16               at   15
44   16   to the left of    6
45   16   to the left of   12
46   16   to the left of    1
47   16   to the left of   13
48   17               on    5
49   17   to the left of   10
50   17  to the right of   12
51   18   to the left of   20
52   19   to the left of    5
53   20  to the right of    2
54   20  to the right of    3
55   20  to the right of   11
56   20  to the right of   18
57   20  to the right of   15
58   21               on    5