Are there both mattresses and cans in the picture?
No, there is a can but no mattresses.
    src        edge_attr  dst
0     1   to the left of   11
1     2   to the left of   11
2     3   to the left of   11
3     3   to the left of    7
4     3   to the left of   23
..  ...              ...  ...
83   23  to the right of   12
84   23   to the left of   13
85   23  to the right of   18
86   26   to the left of   15
87   26   to the left of   14

[88 rows x 3 columns]