What is the color of the bus on the right side?
The bus is red.
    src        edge_attr  dst
0     0  to the right of   11
1     0   to the left of    9
2     0  to the right of   15
3     0   to the left of    8
4     1   to the left of    7
..  ...              ...  ...
58   15      in front of   14
59   15   to the left of    5
60   16   to the left of    8
61   17   to the left of    3
62   17   to the left of   11

[63 rows x 3 columns]