On which side is the cart?
The cart is on the left of the image.
     src        edge_attr  dst
0      0   to the left of   18
1      0   to the left of   17
2      0   to the left of   20
3      0  to the right of    2
4      0  to the right of   10
..   ...              ...  ...
187   26   to the left of    4
188   27   to the left of    4
189   27  to the right of   10
190   27               on   26
191   27   to the left of    3

[192 rows x 3 columns]