Does the stop sign that looks rectangular look white?
No, the stop sign is blue.
    src        edge_attr  dst
0     0  to the right of    4
1     0  to the right of    9
2     0  to the right of    3
3     2  to the right of   14
4     2  to the right of   15
..  ...              ...  ...
70   18  to the right of    8
71   18   to the left of    6
72   18  to the right of   14
73   18  to the right of   15
74   18  to the right of    4

[75 rows x 3 columns]