Are the containers on the right?
Yes, the containers are on the right of the image.
    src        edge_attr  dst
0     0   to the left of   12
1     0  to the right of    8
2     0   to the left of   14
3     1  to the right of    8
4     1   to the left of    5
5     1   to the left of   12
6     1  to the right of   13
7     1   to the left of    2
8     1   to the left of   14
9     2  to the right of    1
10    4               on    1
11    5  to the right of    1
12    6               on    7
13    8   to the left of    0
14    8               on    7
15    8   to the left of    1
16    9   to the left of   10
17   10  to the right of    9
18   12  to the right of    1
19   12  to the right of    0
20   13   to the left of    1
21   14  to the right of    1
22   14  to the right of    0