What is the plate on?
The plate is on the motorbike.
    src        edge_attr  dst
0     0               of    7
1     0  to the right of   13
2     0   to the left of    4
3     1  to the right of    9
4     1               on    7
5     3   to the left of    7
6     3   to the left of   12
7     4  to the right of    0
8     5   to the left of   11
9     7  to the right of    3
10    7  to the right of    8
11    7               on    8
12    7   to the left of   11
13    8   to the left of    7
14    9   to the left of    1
15   11  to the right of    7
16   11  to the right of    5
17   12  to the right of    3
18   12               on    7
19   12   to the left of   15
20   12  to the right of   14
21   13               on    7
22   13   to the left of    0
23   14   to the left of   12
24   15               on    7
25   15  to the right of   12