Are there both dumpsters and helmets in this scene?
No, there is a helmet but no dumpsters.
    src        edge_attr  dst
0     0  to the right of   15
1     0   to the left of   12
2     0  to the right of    9
3     0  to the right of   14
4     2  to the right of   16
5     2   to the left of   12
6     2  to the right of    8
7     7               on    6
8     8   to the left of    2
9     8   to the left of    9
10    9   to the left of    0
11    9  to the right of    8
12    9   to the left of   19
13    9   to the left of   12
14    9  to the right of   16
15    9   to the left of   13
16    9          holding   20
17   12  to the right of    0
18   12  to the right of    2
19   12  to the right of   19
20   12  to the right of    9
21   13  to the right of   14
22   13  to the right of    9
23   13   to the left of   19
24   14   to the left of    0
25   14   to the left of   19
26   14   to the left of   13
27   15   to the left of    0
28   15   to the left of   19
29   16   to the left of    9
30   16   to the left of    2
31   16   to the left of   19
32   18   to the left of   19
33   19   to the left of   12
34   19  to the right of   16
35   19  to the right of   18
36   19  to the right of   14
37   19  to the right of   15
38   19  to the right of    9
39   19  to the right of   13