Are there any cars or buses in this picture?
Yes, there is a bus.
    src        edge_attr  dst
0     0   to the left of    3
1     1  to the right of    7
2     2  to the right of    7
3     2   to the left of    5
4     2   to the left of    4
5     3  to the right of    0
6     4   to the left of    5
7     4  to the right of    2
8     4               on    1
9     5  to the right of    2
10    5  to the right of    4
11    7         crossing    3
12    7   to the left of    2
13    7   walking across    0
14    7   to the left of    1