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