GK DarkMatter. You understand the difference between the right answer and the true answer.
GK? I assume you mean:
Signal GK
from the Imperial Encyclopedia
Abbreviation for Gashimeku Kaalariin, Vilani for "vessel in distress". The code signal GK originated on Vland ( Vland / Vland 1717) as a distress signal in maritime and aviation activity, and it was one of the standard communication codes of the Vilani Imperium. When the Second Imperium succeeded it, signal GK was retained as a distress code co-equal with the Terran SOS and Mayday signals.
In this case we apply the term Signal GK to short adventures of a usually hazardous nature revolving around a specific location, situation or event.