Generate a correct and concise answer for the question based on the words in the context.

[EX Q]: Context : The Stafford by-election, 1984 was a parliamentary by-election held on 3 May 1984 for the British House of Commons constituency of Stafford.
Question : What date is associated with Stafford by-election, 1984?
[EX A]: 3 May 1984

[EX Q]: Context : Nur-Pashi Kulayev (born 1980), a native of Engenoi, Chechnya, is thought to be the sole survivor of the 32 hostage-takers in the 2004 Beslan school hostage crisis, although Chechen warlord Shamil Basayev denied the claim, stating that one other escaped.
Question : Which crime led to the conviction of Nur-Pashi Kulayev?
[EX A]: Beslan school hostage crisis

[EX Q]: Context : Gallienus married Cornelia Salonina about ten years before his accession to the throne.
Question : What is Gallienus's spouse's name?
[EX A]:
Cornelia Salonina