sentences:  They speak in a different dialect to the Kinitawowi, which Kryten and the other crewmembers on "Starbug" find difficult to speak.The Nakki-Ninkers, or "vampire GELFs", are described by Rimmer in the series XI episode "Can of Worms" (2016) as a GELF tribe that feasts on virgins.Kryten explains that they can tell the smell of a virgin apart from a non-virgin by the pheromone produced by fear.