Which place could this be?
It is a street.
     src        edge_attr  dst
0      0   to the left of   21
1      0  to the right of   19
2      0   to the left of    7
3      0  to the right of    4
4      0   to the left of   13
..   ...              ...  ...
120   21  to the right of   14
121   21  to the right of    0
122   21   to the left of    1
123   21  to the right of    4
124   21         crossing   22

[125 rows x 3 columns]