Question: What was the nickname of the Soviet defector to the United States in 1967 who was married to the Russian chemistry professor and rector Yuri Zhdanov?
Sentence (from "Svetlana Alliluyeva"): Svetlana Iosifovna Alliluyeva (Russian: Светла́на Ио́сифовна Аллилу́ева , Georgian: სვეტლანა იოსებინა ალილუევა ; 28 February 1926 – 22 November 2011) (born Svetlana Iosifovna Stalina, Russian: Светла́на Ио́сифовна Сталина , Georgian: სვეტლანა იოსებინა სტალინა ), later known as Lana Peters, was the youngest child and only daughter of Soviet Premier Joseph Stalin and Nadezhda Alliluyeva, Stalin's second wife.
Relevant evidence: Yes