Is the shelf in the bottom part or in the top of the picture?
The shelf is in the top of the image.
     src        edge_attr  dst
0      0  to the right of   13
1      0  to the right of   12
2      0  to the right of   38
3      0  to the right of   39
4      0   to the left of   11
..   ...              ...  ...
260   38   to the left of   15
261   38   to the left of   37
262   39   to the left of   14
263   39   to the left of    1
264   39   to the left of    0

[265 rows x 3 columns]