Are there either any black skateboards or bikes?
No, there is a bike but it is orange.
    src        edge_attr  dst
0     0   to the left of    2
1     0   to the left of    8
2     2   to the left of    4
3     2   to the left of    3
4     2  to the right of    0
5     2   to the left of   10
6     3  to the right of   12
7     3  to the right of    2
8     4  to the right of    2
9     8  to the right of    0
10    8   to the left of   10
11   10  to the right of    8
12   10  to the right of    2
13   12   to the left of    3