What is the sign on?
The sign is on the pole.
    src        edge_attr  dst
0     0               on    6
1     1             near    6
2     2               by    1
3     2  to the right of    8
4     3   to the left of   10
5     5               on    3
6     5  to the right of    6
7     5  to the right of    9
8     6   to the left of    5
9     6             near    1
10    6               by    1
11    6  to the right of    7
12    6  to the right of    8
13    7   to the left of    9
14    7   to the left of    6
15    8   to the left of    6
16    8   to the left of    2
17    8   to the left of    9
18    8               by    1
19    9   to the left of    5
20    9  to the right of    8
21    9  to the right of    7
22   10  to the right of    3