What vehicle is pictured?
The vehicle is a bus.
   src        edge_attr  dst
0    1   to the left of    4
1    2       walking on    1
2    3             near    6
3    4             near    6
4    4   to the left of    6
5    4  to the right of    1
6    6               on    4
7    6  to the right of    4
8    6             near    3
9    6             near    4