Is the shelf in the top of the photo?
Yes, the shelf is in the top of the image.
     src        edge_attr  dst
0      0  to the right of    8
1      0   to the left of    2
2      0  to the right of   19
3      0  to the right of    9
4      1  to the right of    8
..   ...              ...  ...
97    20   to the left of   13
98    20   to the left of    3
99    20   to the left of   15
100   21   to the left of    7
101   22   to the left of   10

[102 rows x 3 columns]