What is covering the post?
The carpet is covering the post.
    src        edge_attr  dst
0     0   to the left of   11
1     0  to the right of   16
2     0  to the right of   15
3     0   to the left of   20
4     0  to the right of   12
..  ...              ...  ...
87   20  to the right of   16
88   20  to the right of   12
89   20  to the right of   17
90   20  to the right of    1
91   20               at    2

[92 rows x 3 columns]