What sign is white?
The sign is a stop sign.
    src        edge_attr  dst
0     0   to the left of   16
1     0  to the right of   14
2     0  to the right of    6
3     0               by   12
4     0  to the right of   11
..  ...              ...  ...
71   16  to the right of    7
72   16  to the right of   12
73   17   to the left of    3
74   17    growing along    6
75   17             near   15

[76 rows x 3 columns]