Which place is it?
It is a market.
     src        edge_attr  dst
0      0   to the left of    7
1      0   to the left of    2
2      0   to the left of   18
3      1  to the right of    2
4      1  to the right of    3
..   ...              ...  ...
172   49  to the right of   14
173   51   to the left of   38
174   51   to the left of   31
175   51   to the left of    2
176   51  to the right of   29

[177 rows x 3 columns]