Are there any mirrors on the motorbike?
No, there are people on the motorbike.
    src        edge_attr  dst
0     0   to the left of   15
1     0  to the right of   14
2     1   to the left of   15
3     1   to the left of   13
4     2   to the left of    8
5     2  to the right of    4
6     2   to the left of   12
7     3  to the right of   14
8     3   to the left of    7
9     3               on   15
10    3  to the right of   16
11    3  to the right of   10
12    4   to the left of    2
13    4   to the left of   12
14    4   to the left of    8
15    5             near    9
16    6  to the right of   11
17    7  to the right of    3
18    7               on   18
19    7  to the right of    8
20    8          wearing    0
21    8   to the left of   15
22    8               on   18
23    8  to the right of    2
24    8  to the right of    4
25    8   to the left of    7
26    8   to the left of   13
27    8  to the right of   14
28    9             near    5
29   10   to the left of    3
30   10  to the right of   14
31   10   to the left of   15
32   11   to the left of    6
33   12  to the right of    4
34   12  to the right of    2
35   13               on   15
36   13  to the right of    8
37   13  to the right of    1
38   14   to the left of    0
39   14   to the left of   10
40   14   to the left of   15
41   14   to the left of    3
42   14   to the left of    8
43   15               on   18
44   15  to the right of   14
45   15  to the right of   16
46   15  to the right of    0
47   15  to the right of    1
48   15  to the right of    8
49   15  to the right of   10
50   16   to the left of   15
51   16   to the left of    3
52   18               on    9