Are there zebras on the grass?
No, there are people on the grass.
     src        edge_attr  dst
0      0  to the right of    6
1      0   to the left of   13
2      0  to the right of   14
3      0   to the left of    8
4      0   to the left of   12
..   ...              ...  ...
115   19   to the left of   18
116   19  to the right of   12
117   20  to the right of    7
118   20   to the left of    9
119   20  to the right of   10

[120 rows x 3 columns]