How is the red vehicle called?
The vehicle is a bus.
    src        edge_attr  dst
0     0   to the left of    2
1     0   to the left of    1
2     0   to the left of    5
3     0   to the left of    3
4     1  to the right of    3
5     1  to the right of    0
6     1   to the left of    5
7     2  to the right of    0
8     3   to the left of    5
9     3   to the left of    4
10    3   to the left of    1
11    3  to the right of    0
12    4   to the left of    5
13    4  to the right of    3
14    5  to the right of    1
15    5  to the right of    0
16    5  to the right of    4
17    5  to the right of    3