Which place is it?
It is a walkway.
    src             edge_attr  dst
0     0       to the right of   18
1     0       to the right of    5
2     0       to the right of    2
3     2        to the left of    0
4     2       to the right of    7
..  ...                   ...  ...
75   28       to the right of    8
76   28       to the right of    6
77   28       to the right of   21
78   28        to the left of   27
79   28  standing in front of   18

[80 rows x 3 columns]