Which kind of animal is it?
The animal is a dog.
    src        edge_attr  dst
0     1               of    7
1     1  to the right of   10
2     1  to the right of    2
3     2   to the left of   10
4     2   to the left of    7
5     2   to the left of    1
6     3  to the right of   13
7     5  to the right of   13
8     6  to the right of   11
9     7  to the right of   13
10    7  to the right of   12
11    7  to the right of    2
12    8  to the right of   12
13    8  to the right of   13
14    9               of    7
15   10               of    7
16   10   to the left of    1
17   10  to the right of    2
18   11   to the left of    6
19   11  to the right of   13
20   12  to the right of   13
21   12   to the left of    8
22   12   to the left of    7
23   13   to the left of    3
24   13   to the left of    5
25   13   to the left of    7
26   13   to the left of    8
27   13   to the left of   11
28   13   to the left of   12