Which place is it?
It is a yard.
     src        edge_attr  dst
0      0  to the right of    3
1      1   to the left of    9
2      1   to the left of   11
3      1   to the left of   31
4      1   to the left of   32
..   ...              ...  ...
173   32   to the left of   24
174   32   to the left of   27
175   32  to the right of    1
176   32  to the right of    6
177   32   to the left of   26

[178 rows x 3 columns]