Do you see any pilots?
Yes, there is a pilot.
    src        edge_attr  dst
0     0      surrounding   11
1     0               of   21
2     0               of   11
3     0  to the right of   20
4     0   to the left of   12
..  ...              ...  ...
76   20   to the left of   16
77   21               in   19
78   21               on   19
79   21      in front of    9
80   21  to the right of   14

[81 rows x 3 columns]