Is the train's nose black?
No, the nose is yellow.
    src        edge_attr  dst
0     0  to the right of    2
1     0  to the right of    6
2     0  to the right of    3
3     0  to the right of    9
4     0  to the right of    4
..  ...              ...  ...
62   16  to the right of   12
63   16  to the right of    2
64   16  to the right of    4
65   16  to the right of    9
66   16  to the right of    3

[67 rows x 3 columns]