Are there any knives below the green broccoli to the left of the person?
Yes, there is a knife below the broccoli.
    src        edge_attr  dst
0     1  to the right of    6
1     1  to the right of    9
2     2   to the left of    9
3     3  to the right of    6
4     4  to the right of    6
5     6   to the left of    3
6     6   to the left of    1
7     6   to the left of    4
8     6   to the left of    7
9     7  to the right of    6
10    8            under    9
11    8   to the left of    9
12    8            below    9
13    9   to the left of    1
14    9  to the right of    8
15    9            above    8
16    9  to the right of    2