Is that wagon to the left of a horse?
No, the wagon is to the left of the box.
     src        edge_attr  dst
0      0  to the right of   42
1      0  to the right of   34
2      0  to the right of   45
3      1  to the right of   11
4      1  to the right of   10
..   ...              ...  ...
238   46  to the right of   32
239   46   to the left of   26
240   46   to the left of   34
241   46   to the left of   41
242   46   to the left of   42

[243 rows x 3 columns]