What's the depth of the plate?
The plate is shallow.
    src        edge_attr  dst
0     0               of   16
1     0  to the right of   14
2     0  to the right of   13
3     2               on   12
4     2   to the left of   10
5     2   to the left of    8
6     3   to the left of   10
7     3               on   12
8     4               on   12
9     5   to the left of   12
10    5               in    9
11    6             with   10
12    6   to the left of    8
13    7               on    8
14    8  to the right of   15
15    8  to the right of    2
16    8               on    1
17    8  to the right of   10
18    8  to the right of    6
19    9               of    5
20    9   to the left of   12
21    9   to the left of   15
22   10               on    6
23   10               on   12
24   10   to the left of    8
25   10  to the right of    2
26   10  to the right of    3
27   11               on    8
28   11  to the right of   12
29   12   to the left of   11
30   12  to the right of    9
31   12  to the right of    5
32   13   to the left of    0
33   13   to the left of   16
34   13               in   14
35   14   to the left of    0
36   14   to the left of   16
37   15   to the left of    8
38   15               on   12
39   15  to the right of    9
40   16               in    0
41   16  to the right of   13
42   16  to the right of   14