Are there tables in the photo that are not smooth?
Yes, there is a rough table.
    src        edge_attr  dst
0     2   to the left of    5
1     2   to the left of    3
2     3   to the left of    7
3     3               on    5
4     3  to the right of    8
5     3  to the right of    2
6     5  to the right of    2
7     5  to the right of    8
8     5   to the left of    7
9     7  to the right of    3
10    7  to the right of    5
11    8   to the left of    5
12    8   to the left of    3