<s>
There	O
also	O
are	O
standard	O
transponder	O
codes	O
for	O
defined	O
situations	O
defined	O
by	O
the	O
International	B-General_Concept
Civil	I-General_Concept
Aviation	I-General_Concept
Organization	I-General_Concept
(	O
marked	O
below	O
as	O
ICAO	O
)	O
.	O
</s>
