What animal are these, elephants or giraffes?
These are giraffes.
    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 left of   11
..  ...              ...  ...
59   13   to the left of    3
60   13  to the right of    1
61   13  to the right of    7
62   13  to the right of    6
63   13  to the right of    0

[64 rows x 3 columns]