With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The Singing Detective has episodes.
text_B: Camber the Heretic is a fantasy novel by American-born author Katherine Kurtz .. Katherine Kurtz. Katherine Kurtz. fantasy novel. fantasy novel. American. United States. It was first published by Del Rey Books in 1981 .. Del Rey Books. Del Rey Books. It was the sixth novel of Kurtz ' Deryni novels to be published , and the third book in her second Deryni trilogy , The Legends of Camber of Culdi .. The Legends of Camber of Culdi. Deryni novels#The Legends of Camber of Culdi. Deryni novels. Deryni novels. The Legends trilogy serves as prequels to The Chronicles of the Deryni series that Kurtz wrote from 1970 to 1973 , and it details the events that occurred two centuries before the Chronicles trilogy .. Kurtz ' next Deryni series to be published was The Histories of King Kelson , but the internal literary chronology of the Legends trilogy is continued in The Heirs of Saint Camber trilogy .. Saint Camber. Saint Camber
not_related.