Which place is it?
It is a field.
    src        edge_attr  dst
0     0   to the left of    9
1     0   to the left of   12
2     1   to the left of    6
3     2  to the right of   18
4     2  to the right of    8
..  ...              ...  ...
75   24   to the left of   17
76   24  to the right of    3
77   24  to the right of   12
78   24  to the right of    9
79   24  to the right of   22

[80 rows x 3 columns]