Are there chalkboards or mats in this photo?
No, there are no mats or chalkboards.
    src        edge_attr  dst
0     0   to the left of    7
1     0   to the left of    4
2     0  to the right of   11
3     0  to the right of    2
4     1   to the left of    4
..  ...              ...  ...
74   13   to the left of    9
75   13  to the right of    2
76   13   to the left of   12
77   13  to the right of    5
78   13   to the left of    4

[79 rows x 3 columns]