Is this a cat or a dog?
This is a dog.
    src        edge_attr  dst
0     0   to the left of    8
1     1   to the left of    8
2     3   to the left of   11
3     4   to the left of    8
4     5        on top of    6
5     5   to the left of    8
6     8  to the right of    0
7     8  to the right of    1
8     8  to the right of    5
9     8  to the right of    4
10   10   to the left of   11
11   11  to the right of    3
12   11  to the right of   10