Question: Author Kurt Vonnegut, who is most famous for his novel Slaughterhouse-Five, created Granfalloon, which is defined as a "false karass" in the fictional religion of what?
Sentence (from "Granfalloon"): A granfalloon, in the fictional religion of Bokononism (created by Kurt Vonnegut in his 1963 novel "Cat's Cradle"), is defined as a "false karass".
Relevant evidence: Yes