Is the shelf in the bottom or in the top part?
The shelf is in the top of the image.
    src        edge_attr  dst
0     0   to the left of   23
1     0   to the left of   25
2     0   to the left of    8
3     0   to the left of   21
4     0   to the left of    6
..  ...              ...  ...
93   28  to the right of    7
94   28  to the right of    6
95   29  to the right of   12
96   29   to the left of   24
97   29   to the left of   16

[98 rows x 3 columns]