Are the containers on the left side?
Yes, the containers are on the left of the image.
    src        edge_attr  dst
0     1   to the left of   12
1     1   to the left of    9
2     1   to the left of   23
3     1   to the left of   24
4     1   to the left of    6
..  ...              ...  ...
83   24  to the right of   23
84   24  to the right of   11
85   24  to the right of   14
86   24   to the left of    5
87   24  to the right of    1

[88 rows x 3 columns]