On which side of the photo is the shelf?
The shelf is on the left of the image.
     src        edge_attr  dst
0      0  to the right of    8
1      0  to the right of    5
2      0   to the left of    7
3      0  to the right of    4
4      0   to the left of   20
..   ...              ...  ...
221   26  to the right of    8
222   26  to the right of    5
223   26  to the right of    4
224   26  to the right of   24
225   26  to the right of   25

[226 rows x 3 columns]