Are all the animals of the same type?
Yes, all the animals are dogs.
    src        edge_attr  dst
0     1               of    3
1     1   to the left of    9
2     2               of    3
3     2   to the left of    9
4     3   to the left of    9
5     3       running in    5
6     3   to the left of   10
7     3               in    5
8     6   to the left of    9
9     7       running in    5
10    7  to the right of    9
11    7               in    5
12    7  to the right of   10
13    8               on    7
14    8  to the right of   10
15    8  to the right of    9
16    9       running in    5
17    9               in    5
18    9  to the right of    2
19    9  to the right of    1
20    9   to the left of    7
21    9  to the right of    3
22    9   to the left of    8
23    9  to the right of    6
24   10  to the right of    3
25   10   to the left of    7
26   10   to the left of    8