Are there either any ducks or crabs in the picture?
No, there are no ducks or crabs.
   src        edge_attr  dst
0    0   to the left of    3
1    1   to the left of    2
2    2  to the right of    5
3    2  to the right of    1
4    3  to the right of    4
5    3  to the right of    0
6    4               of    0
7    4   to the left of    3
8    5   to the left of    2