What vehicle is parked by the water?
The vehicle is a truck.
   src        edge_attr  dst
0    0   on the side of    0
1    0  to the right of    2
2    1  to the right of    6
3    1  to the right of    5
4    2   to the left of    0
5    2        parked by    1
6    5   to the left of    1
7    6   to the left of    1