What color does the truck have?
The truck has white color.
   src        edge_attr  dst
0    0  to the right of    3
1    2  to the right of    6
2    3   to the left of    0
3    4  to the right of    5
4    5   to the left of    7
5    5  to the right of    6
6    5   to the left of    4
7    6   to the left of    5
8    6   to the left of    2
9    7  to the right of    5