Who is observing the animal behind the fence?
The children are observing the elephant.
    src        edge_attr  dst
0     0             near    1
1     0  to the right of    7
2     0  to the right of   10
3     0  to the right of   18
4     0  to the right of    3
..  ...              ...  ...
84   17   to the left of    0
85   17   to the left of    1
86   17   to the left of   16
87   18   to the left of    0
88   18   to the left of    1

[89 rows x 3 columns]