What is in the container?
The orange is in the container.
    src        edge_attr  dst
0     0               in    1
1     0   to the left of   10
2     0   to the left of    8
3     0   to the left of   11
4     1   to the left of   11
5     1   to the left of   10
6     1   to the left of    8
7     7               in    5
8     7             with    4
9     8  to the right of    1
10    8  to the right of    0
11    8  to the right of    9
12    9   to the left of   11
13    9   to the left of   10
14    9   to the left of    8
15   10       sitting on    8
16   10  to the right of    0
17   10  to the right of    1
18   10  to the right of    9
19   11  to the right of    0
20   11               in   10
21   11  to the right of    9
22   11  to the right of    1