Are there either helmets or bicycles?
No, there are no bicycles or helmets.
    src        edge_attr  dst
0     0   to the left of    1
1     1   to the left of   11
2     1               of    7
3     1  to the right of    0
4     1   to the left of    4
5     1  to the right of    3
6     1   to the left of   13
7     2  to the right of    4
8     2  to the right of   13
9     3   to the left of    1
10    3               of    7
11    3   to the left of   14
12    3  to the right of   15
13    4  to the right of   14
14    4   to the left of    2
15    4  to the right of    1
16    5  to the right of   10
17    5           beside   13
18    6  to the right of   10
19    8  to the right of   15
20    9   to the left of   11
21   10   to the left of   13
22   10               at    7
23   10   to the left of    6
24   10   to the left of    5
25   10               of    7
26   11  to the right of    1
27   11  to the right of   12
28   11  to the right of    9
29   12   to the left of   11
30   12               on    7
31   12               on   12
32   12        on top of    7
33   13   to the left of    2
34   13  to the right of   14
35   13  to the right of    1
36   13  to the right of   10
37   14   to the left of    4
38   14  to the right of    3
39   14   to the left of   13
40   15   to the left of    3
41   15   to the left of    8