What cooking utensil isn't rectangular?
The cooking utensil is a cutting board.
    src        edge_attr  dst
0     0       sitting on    3
1     0             near    6
2     0            above    3
3     1               on    6
4     2               in    0
5     2             near    5
6     2   to the left of   10
7     2   to the left of    5
8     2   to the left of   11
9     3            under    0
10    4               in    7
11    5               in   15
12    5             near   11
13    5          next to    2
14    5   to the left of   10
15    5               in    0
16    5  to the right of    2
17    6  to the right of   12
18    6       sitting on    3
19    6          next to    0
20    7       sitting on    3
21    7   to the left of   12
22    8               in    0
23    8               in   15
24    9               in   15
25    9               in    0
26   10               in    0
27   10  to the right of    2
28   10  to the right of    5
29   11               in   15
30   11          next to    5
31   11  to the right of    2
32   12  to the right of    7
33   12   to the left of    6
34   13               in   15
35   14               in   15
36   15               in    0