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