Is it outdoors or indoors?
It is outdoors.
    src        edge_attr  dst
0     0  to the right of   21
1     0  to the right of   20
2     0  to the right of   19
3     0  to the right of   16
4     1  to the right of   15
..  ...              ...  ...
71   21  to the right of   20
72   21   to the left of   22
73   22  to the right of   16
74   22  to the right of   21
75   22  to the right of   19

[76 rows x 3 columns]