Is there a traffic light or a helmet that is black?
Yes, the traffic light is black.
     src        edge_attr  dst
0      0   to the left of    7
1      1   to the left of   23
2      1  to the right of    8
3      1   to the left of   25
4      1   to the left of   18
..   ...              ...  ...
147   29  to the right of   27
148   29   to the left of    7
149   30  to the right of   27
150   30  to the right of   29
151   30   to the left of    7

[152 rows x 3 columns]