Do you see airplanes at the gate?
Yes, there are airplanes at the gate.
    src        edge_attr  dst
0     0   to the left of   18
1     0   to the left of   20
2     1  to the right of   27
3     1  to the right of   20
4     2  to the right of   25
..  ...              ...  ...
79   27  to the right of   13
80   27   to the left of   16
81   27  to the right of   15
82   27   to the left of   14
83   27  to the right of   25

[84 rows x 3 columns]