Is the white vehicle on the left side or on the right?
The van is on the left of the image.
    src        edge_attr  dst
0     1   to the left of    7
1     1   to the left of    6
2     1   to the left of    9
3     3  to the right of    4
4     3  to the right of    6
5     3  to the right of    5
6     4  to the right of    9
7     4  to the right of    6
8     4   to the left of    5
9     4   to the left of    3
10    5  to the right of    4
11    5   to the left of    3
12    5  to the right of    6
13    6  to the right of    9
14    6   to the left of    5
15    6  to the right of    1
16    6   to the left of    4
17    6   to the left of    3
18    7  to the right of    1
19    9  to the right of    1
20    9   to the left of    4
21    9   to the left of    6