Who is on the seat of the aircraft?
The pilot is on the seat.
    src        edge_attr  dst
0     2   to the left of   19
1     2  to the right of   12
2     2   to the left of   18
3     3  to the right of    5
4     3  to the right of    6
5     3  to the right of   15
6     3   to the left of   16
7     4  to the right of    6
8     4  to the right of    5
9     5   to the left of    3
10    5   to the left of    4
11    6   to the left of    8
12    6   to the left of    3
13    6   to the left of   11
14    6   to the left of   10
15    6   to the left of    4
16    8   to the left of   11
17    8  to the right of   15
18    8   to the left of   16
19    8  to the right of    6
20    9   to the left of   17
21   10  to the right of    6
22   10  to the right of   15
23   11  to the right of   15
24   11  to the right of    6
25   11  to the right of    8
26   12   to the left of    2
27   15   to the left of   10
28   15   to the left of   11
29   15   to the left of    3
30   15   to the left of    8
31   16  to the right of    3
32   16  to the right of    8
33   17               on    9
34   17  to the right of    9
35   18  to the right of    2
36   19  to the right of    2
37   22               on   21