What is the animal that is behind the barrier that looks gray?
The animal is an elephant.
     src        edge_attr  dst
0      0  to the right of   19
1      0   to the left of   23
2      0  to the right of    5
3      0   to the left of    4
4      0   to the left of   13
..   ...              ...  ...
180   25  to the right of    6
181   25  to the right of    5
182   25   to the left of    4
183   26   to the left of   19
184   26   to the left of   22

[185 rows x 3 columns]