What do you think is the elephant that looks gray doing?
The elephant is eating.
    src        edge_attr  dst
0     0  to the right of    7
1     0  to the right of    6
2     0  to the right of   12
3     1   to the left of    9
4     1   to the left of    8
..  ...              ...  ...
57   15  to the right of   11
58   15  to the right of   13
59   15  to the right of    1
60   15   to the left of    6
61   15  to the right of    8

[62 rows x 3 columns]