Are there knives in this image?
No, there are no knives.
    src        edge_attr  dst
0     0  to the right of    7
1     1  to the right of    5
2     2               in    6
3     2  to the right of    7
4     2  to the right of    5
5     4  to the right of    7
6     4  to the right of    5
7     5   to the left of    1
8     5   to the left of    2
9     5   to the left of    4
10    5   to the left of    6
11    6  to the right of    5
12    6  to the right of    7
13    7   to the left of    6
14    7   to the left of    4
15    7   to the left of    2
16    7   to the left of    8
17    7   to the left of    0
18    8  to the right of    7
19    8               in    6