Is the floor behind a hamburger?
No, the floor is behind the pizza.
    src        edge_attr  dst
0     0  to the right of    6
1     1   to the left of    2
2     2  to the right of    1
3     2  to the right of    6
4     4       sitting on    8
5     4     sitting atop    8
6     5           behind    8
7     6       sitting on    8
8     6   to the left of    0
9     6   to the left of    2
10    8       sitting on    7
11    8             with    1
12    8      in front of    5
13    8             with    4
14    8             with    2