instruction:
Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.
question:
Context : Matthias Billen (29 March 1910 -- 1 July 1989) was a German international footballer.
Answer : 1 July 1989
answer:
When did Matthias Billen's death occur?

question:
Context : Charnvit Kasetsiri obtained his Ph.D. in Southeast Asian History from Cornell University in 1972, under the supervision of O. W. Wolters and David K. Wyatt.
Answer : Cornell University
answer:
What is the university where Charnvit Kasetsiri went?

question:
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.
Answer : Beslan school hostage crisis
answer:
Which crime led to the conviction of Nur-Pashi Kulayev?