On which side of the photo is the curtain?
The curtain is on the right of the image.
    src        edge_attr  dst
0     0  to the right of    3
1     0  to the right of   18
2     0  to the right of   15
3     0  to the right of    7
4     0  to the right of   14
5     0  to the right of    9
6     2   to the left of   10
7     2  to the right of    5
8     2   to the left of    7
9     2   to the left of    6
10    2   to the left of   12
11    2   to the left of    9
12    2  to the right of   13
13    3   to the left of    0
14    3  to the right of   10
15    4               on    6
16    5   to the left of    2
17    5   to the left of   15
18    5   to the left of   17
19    6  to the right of    2
20    7  to the right of    2
21    7  to the right of   17
22    7   to the left of    0
23    8               on    7
24    8               on    6
25    8   to the left of   11
26    9  to the right of   17
27    9  to the right of    2
28    9   to the left of    0
29   10  to the right of   17
30   10   to the left of    3
31   10   to the left of   16
32   10  to the right of    2
33   11               on    6
34   11  to the right of    8
35   12               on    7
36   12  to the right of    2
37   13   to the left of   18
38   13   to the left of   15
39   13   to the left of    2
40   14   to the left of    0
41   15   to the left of    0
42   15  to the right of   13
43   15  to the right of    5
44   16  to the right of   10
45   16  to the right of   17
46   16  to the right of   18
47   17   to the left of    7
48   17   to the left of    9
49   17  to the right of    5
50   17   to the left of   10
51   17   to the left of   16
52   18   to the left of   16
53   18   to the left of    0
54   18  to the right of   13