What are the drawers in?
The drawers are in the refrigerator.
    src        edge_attr  dst
0     0   to the left of   12
1     0  to the right of   13
2     2               in    1
3     3   to the left of   15
4     3   to the left of   10
5     3  to the right of    5
6     4  to the right of   13
7     4   to the left of   12
8     5               in    1
9     5   to the left of    3
10    5   to the left of   10
11    5   to the left of   15
12    7               in    1
13   10  to the right of    5
14   10  to the right of    3
15   12  to the right of    0
16   12  to the right of    4
17   13   to the left of    4
18   13   to the left of    0
19   13               in    1
20   14               in    1
21   15  to the right of    3
22   15  to the right of    5
23   15               in    1