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