Are there both cars and numbers in the picture?
Yes, there are both numbers and a car.
    src        edge_attr  dst
0     0   to the left of   10
1     0   to the left of    3
2     2               on    1
3     2  to the right of    3
4     3   to the left of    6
5     3   to the left of    7
6     3  to the right of    9
7     3  to the right of    4
8     3   to the left of    2
9     3  to the right of    0
10    4   to the left of    9
11    4   to the left of    3
12    5   to the left of    7
13    6  to the right of    3
14    7  to the right of    3
15    7  to the right of    5
16    9   to the left of    3
17    9  to the right of    4
18   10  to the right of    0
19   11       mounted on    3