Is it indoors or outdoors?
It is indoors.
     src       edge_attr  dst
0      0  to the left of    1
1      0  to the left of   20
2      0  to the left of   15
3      0  to the left of   11
4      0  to the left of   10
..   ...             ...  ...
128   22  to the left of   11
129   22  to the left of    7
130   22  to the left of   10
131   22  to the left of   14
132   22  to the left of   13

[133 rows x 3 columns]