Which side of the picture is the white shelf on?
The shelf is on the left of the image.
     src       edge_attr  dst
0      0  to the left of   22
1      0  to the left of   21
2      0  to the left of   17
3      0  to the left of   19
4      0  to the left of   15
..   ...             ...  ...
149   31  to the left of   23
150   32  to the left of   29
151   32  to the left of   25
152   32  to the left of   22
153   32  to the left of   28

[154 rows x 3 columns]