What is in front of the mat?
The computer is in front of the mat.
    src        edge_attr  dst
0     0  to the right of   12
1     0  to the right of    3
2     1  to the right of   11
3     1  to the right of    9
4     1  to the right of   14
..  ...              ...  ...
70   15  to the right of   14
71   15  to the right of   11
72   15  to the right of    9
73   16   to the left of    3
74   16   to the left of   12

[75 rows x 3 columns]