Is the black device on the left or on the right side of the image?
The camera is on the left of the image.
    src        edge_attr  dst
0     0  to the right of    3
1     0  to the right of    6
2     0  to the right of    2
3     1   to the left of   20
4     1  to the right of    3
..  ...              ...  ...
68   20  to the right of    9
69   20  to the right of   12
70   20  to the right of    1
71   20  to the right of    5
72   20  to the right of   10

[73 rows x 3 columns]