Are these kittens or dogs?
These are dogs.
    src        edge_attr  dst
0     0   to the left of   13
1     0   to the left of   12
2     0   to the left of    6
3     0   to the left of    1
4     0  to the right of    8
5     1   to the left of    7
6     1  to the right of    0
7     2  to the right of    4
8     3   to the left of   13
9     3   to the left of   12
10    4   to the left of   10
11    4   to the left of    2
12    6  to the right of    9
13    6  to the right of    0
14    7  to the right of    1
15    7       hanging on    0
16    8   to the left of    0
17    8   to the left of   10
18    9               on   10
19    9   to the left of    6
20    9   to the left of   12
21    9   to the left of   13
22   10  to the right of    4
23   10  to the right of    8
24   11   to the left of   12
25   12  to the right of    9
26   12  to the right of    3
27   12  to the right of    0
28   12               on   10
29   12  to the right of   11
30   13  to the right of    9
31   13  to the right of    3
32   13  to the right of    0