What is the sign that is on the metal post?
The sign is a street sign.
    src        edge_attr  dst
0     0  to the right of    1
1     1   to the left of    0
2     1  to the right of    7
3     2  to the right of    3
4     2               in    9
5     3   to the left of    2
6     3               in    9
7     4   to the left of    5
8     4           behind   10
9     5               in    9
10    5  to the right of   10
11    5  to the right of    4
12    6               in    9
13    7   to the left of    1
14    7   to the left of   12
15    8               in    9
16   10            under   11
17   10               on    7
18   10   to the left of    5
19   10            below   11
20   10      in front of    4
21   11               on    7
22   11            above   10
23   12               in    9
24   12  to the right of    7