What is the knife on?
The knife is on the poster.
    src        edge_attr  dst
0     0   to the left of    4
1     0   to the left of    3
2     1   to the left of    6
3     1   to the left of   10
4     1   to the left of    8
5     1   to the left of    5
6     1   to the left of    7
7     2   to the left of   13
8     2   to the left of    9
9     2   to the left of   12
10    3   to the left of    9
11    3   to the left of   13
12    3  to the right of    4
13    3  to the right of    0
14    3   to the left of   12
15    4               on    2
16    4  to the right of    0
17    4   to the left of    3
18    4   to the left of   12
19    5  to the right of    1
20    6  to the right of    9
21    6  to the right of   14
22    6  to the right of   11
23    6  to the right of    1
24    7  to the right of    1
25    8  to the right of    1
26    8  to the right of   14
27    8  to the right of   12
28    8  to the right of    9
29    8  to the right of   11
30    9   to the left of    8
31    9  to the right of    2
32    9   to the left of   10
33    9   to the left of    6
34    9  to the right of    3
35   10  to the right of    9
36   10  to the right of   14
37   10  to the right of   12
38   10  to the right of    1
39   10  to the right of   13
40   10  to the right of   11
41   11   to the left of    6
42   11  to the right of   13
43   11   to the left of   10
44   11   to the left of    8
45   12  to the right of    4
46   12  to the right of    2
47   12   to the left of   10
48   12   to the left of    8
49   12  to the right of    3
50   13   to the left of   14
51   13   to the left of   10
52   13  to the right of    3
53   13   to the left of   11
54   13  to the right of    2
55   14  to the right of   13
56   14   to the left of    6
57   14   to the left of   10
58   14   to the left of    8