Which kind of animal is this?
That is a monkey.
    src        edge_attr  dst
0     1   to the left of    4
1     1   to the left of    3
2     1   to the left of   11
3     1   to the left of    9
4     2   to the left of   17
5     3               on    4
6     3  to the right of    1
7     4           behind    6
8     4  to the right of   15
9     4  to the right of   10
10    4  to the right of    1
11    4  to the right of    7
12    4  to the right of    5
13    5  to the right of    8
14    5   to the left of    4
15    5   to the left of   11
16    6  to the right of    8
17    6          holding    2
18    7  to the right of   15
19    7   to the left of    4
20    8   to the left of    6
21    8   to the left of    5
22    8   to the left of   10
23    9  to the right of    1
24    9  to the right of   17
25   10   to the left of    4
26   10  to the right of    8
27   10   to the left of   11
28   11  to the right of    5
29   11  to the right of   10
30   11  to the right of   15
31   11  to the right of    1
32   12               of    6
33   14               of    6
34   15               of    6
35   15   to the left of   11
36   15   to the left of    7
37   15   to the left of    4
38   17  to the right of    2
39   17   to the left of    9