On which side is the container?
The container is on the right of the image.
    src        edge_attr  dst
0     0   to the left of    9
1     0  to the right of    3
2     0   to the left of    2
3     0  to the right of    7
4     1            below    9
5     2  to the right of    7
6     2  to the right of    8
7     2  to the right of    0
8     3   to the left of    0
9     3   to the left of    9
10    6   to the left of    9
11    7   to the left of    2
12    7           behind    1
13    7   to the left of    8
14    7   to the left of    0
15    8   to the left of    2
16    8  to the right of    7
17    8               on    1
18    9  to the right of    0
19    9  to the right of    3
20    9  to the right of    6