What is on the red pole?
The stop sign is on the pole.
    src        edge_attr  dst
0     0   to the left of    7
1     0  to the right of    8
2     0  to the right of    1
3     0  to the right of   11
4     0  to the right of    3
5     1   to the left of    6
6     1   to the left of    0
7     1   to the left of    9
8     2   to the left of    7
9     3               on    5
10    3   to the left of    0
11    3   to the left of    7
12    3  to the right of   10
13    6  to the right of   11
14    6  to the right of    1
15    6   to the left of    7
16    7  to the right of    9
17    7  to the right of    0
18    7  to the right of    3
19    7  to the right of    2
20    7  to the right of    6
21    8               on    3
22    8   to the left of    0
23    9   to the left of    7
24    9  to the right of    1
25    9  to the right of   11
26   10   to the left of    3
27   11   to the left of    0
28   11   to the left of    6
29   11   to the left of    9