Is the shelf on the right side of the photo?
Yes, the shelf is on the right of the image.
    src        edge_attr  dst
0     0  to the right of   17
1     0  to the right of    5
2     0  to the right of    1
3     0  to the right of    8
4     1  to the right of   17
5     1   to the left of    0
6     1  to the right of    8
7     2  to the right of   21
8     3   to the left of   12
9     3   to the left of   11
10    3   to the left of   16
11    5   to the left of    0
12    7  to the right of   21
13    7               in    2
14    8   to the left of    1
15    8   to the left of    0
16   11  to the right of    3
17   12  to the right of    3
18   14  to the right of   18
19   15  to the right of   17
20   15  to the right of   21
21   16  to the right of    3
22   17   to the left of    0
23   17   to the left of   23
24   17   to the left of    1
25   17   to the left of   15
26   18   to the left of   20
27   18   to the left of   19
28   18   to the left of   14
29   19   to the left of   20
30   19  to the right of   18
31   20  to the right of   19
32   20  to the right of   18
33   21   to the left of   23
34   21   to the left of    2
35   21   to the left of   15
36   21   to the left of    7
37   23  to the right of   21
38   23  to the right of   17