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