On which side of the image is the shelf?
The shelf is on the right of the image.
     src        edge_attr  dst
0      1   to the left of   19
1      1   to the left of   20
2      1   to the left of   32
3      1   to the left of   22
4      1   to the left of   17
..   ...              ...  ...
318   38  to the right of   20
319   38  to the right of   19
320   38  to the right of   12
321   38  to the right of    5
322   38   to the left of   37

[323 rows x 3 columns]