On which side of the picture are the curtains?
The curtains are on the left of the image.
    src       edge_attr  dst
0     0  to the left of   13
1     0  to the left of    8
2     0  to the left of    4
3     0  to the left of    9
4     0  to the left of   10
..  ...             ...  ...
71   16              on    2
72   16  to the left of    2
73   17  to the left of    2
74   17  to the left of    8
75   17  to the left of    4

[76 rows x 3 columns]