What the aircraft that is blue is called?
The aircraft is a helicopter.
    src        edge_attr  dst
0     0  to the right of    9
1     0  to the right of    8
2     0  to the right of   13
3     0               of    3
4     0  to the right of   11
5     2  to the right of    4
6     2   to the left of    6
7     2   to the left of    7
8     3  to the right of   12
9     4   to the left of    6
10    4   to the left of    2
11    4   to the left of    7
12    5  to the right of   14
13    6  to the right of    2
14    6  to the right of    4
15    6  to the right of    7
16    7  to the right of    4
17    7   to the left of    6
18    7  to the right of    2
19    8   to the left of    0
20    8  to the right of   13
21    9   to the left of    0
22    9        on top of    3
23   11  to the right of   13
24   11   to the left of    0
25   12   to the left of    3
26   13   to the left of   11
27   13   to the left of    0
28   13   to the left of    8
29   14   to the left of    5