The Nebula-9 Deep Space Observatory uses an automated algorithm to categorize incoming radio transmission signals based on the first character of their signature code.

This is pseudo-code for the classification algorithm:

1 IF (sig[0] >= "D" AND sig[0] <= "K") THEN
2     SEND "Stellar Flare" TO DISPLAY
3 ELSE
4     IF (sig[0] >= "L" AND sig[0] <= "S") THEN
5         SEND "Nebular Echo" TO DISPLAY
6     ELSE
7         IF (sig[0] >= "T" AND sig[0] <= "Y") THEN
8             SEND "Pulsar Beam" TO DISPLAY
9         ELSE
10            SEND "Background Noise" TO DISPLAY
11        END IF
12    END IF
13 END IF