Which place is it?
It is a field.
    src        edge_attr  dst
0     1  to the right of   17
1     1  to the right of   16
2     1  to the right of    6
3     1  to the right of    3
4     1   to the left of   12
..  ...              ...  ...
84   19  to the right of   15
85   19   to the left of   12
86   19   to the left of   14
87   20  to the right of   15
88   20   to the left of   10

[89 rows x 3 columns]