What animal is standing on the ground?
The pigeon is standing on the ground.
    src        edge_attr  dst
0     0   to the left of    7
1     0   to the left of   13
2     0  to the right of    3
3     0   to the left of    6
4     3   to the left of   14
5     3   to the left of    0
6     3   to the left of    5
7     3   to the left of    6
8     3   to the left of    9
9     4   to the left of   15
10    5  to the right of    3
11    5   to the left of    7
12    6   to the left of   17
13    6  to the right of    3
14    6   to the left of    7
15    6  to the right of    0
16    7  to the right of    9
17    7  to the right of    0
18    7  to the right of   16
19    7  to the right of   14
20    7  to the right of   17
21    7  to the right of    5
22    7  to the right of    6
23    7      standing on    1
24    9   to the left of   13
25    9  to the right of    3
26    9   to the left of   11
27    9   to the left of    7
28   10               on    1
29   11  to the right of    9
30   13  to the right of   14
31   13  to the right of    0
32   13  to the right of    9
33   13               of    7
34   14   to the left of   13
35   14   to the left of    7
36   14  to the right of    3
37   15  to the right of    4
38   15               on    1
39   16   to the left of    7
40   16   to the left of   17
41   17  to the right of   16
42   17   to the left of    7
43   17  to the right of    6