Which side is the dog on?
The dog is on the right of the image.
    src        edge_attr  dst
0     0  to the right of   10
1     0  to the right of    9
2     1   to the left of   10
3     1   to the left of    9
4     7   to the left of   12
5     7   to the left of   11
6     9   to the left of    0
7     9  to the right of    1
8     9   to the left of   11
9    10   to the left of   11
10   10   to the left of    0
11   10  to the right of    1
12   11  to the right of   10
13   11  to the right of    9
14   11  to the right of    7
15   12  to the right of    7