Which place is it?
It is a plain.
    src        edge_attr  dst
0     0  to the right of   16
1     0  to the right of   15
2     1  to the right of    6
3     1  to the right of   22
4     1  to the right of   13
..  ...              ...  ...
77   24  to the right of    6
78   24  to the right of   25
79   25   to the left of   24
80   25   to the left of   26
81   26  to the right of   25

[82 rows x 3 columns]