Is the mat in the top part or in the bottom?
The mat is in the bottom of the image.
    src        edge_attr  dst
0     0   to the left of    7
1     0  to the right of    3
2     1   to the left of    8
3     1               on    9
4     2   to the left of   16
..  ...              ...  ...
73   20  to the right of   11
74   20  to the right of   13
75   20   to the left of   19
76   21  to the right of   20
77   21  to the right of    7

[78 rows x 3 columns]