Is there a traffic light in this photograph that is red?
Yes, there is a traffic light that is red.
   src        edge_attr  dst
0    2   to the left of    8
1    3  to the right of    7
2    4   to the left of    5
3    5  to the right of    4
4    6   to the left of    7
5    7   to the left of    3
6    7  to the right of    6
7    8  to the right of    2