Does the sign on the pole look white and octagonal?
Yes, the stop sign is white and octagonal.
    src        edge_attr  dst
0     0   to the left of    6
1     1  to the right of    9
2     3  to the right of   12
3     3  to the right of    6
4     3   to the left of    5
5     4           behind   12
6     5  to the right of    3
7     6  to the right of    0
8     6   to the left of    3
9     6  to the right of   10
10    6  to the right of    8
11    8   to the left of    9
12    8   to the left of    6
13    9  to the right of   10
14    9  to the right of    8
15    9   to the left of   11
16    9   to the left of    1
17   10   to the left of    9
18   10        on top of    8
19   10   to the left of    6
20   11  to the right of    9
21   11               on    5
22   12   to the left of    3
23   12      in front of    4