TASK DEFINITION: Generate a correct and concise answer for the question based on the words in the context.
PROBLEM: Context : Luitzen Egbertus Jan Brouwer ForMemRS (Dutch: (lyts(n) brts jn brur); 27 February 1881 -- 2 December 1966), usually cited as L. E. J. Brouwer but known to his friends as Bertus, was a Dutch mathematician and philosopher, a graduate of the University of Amsterdam, who worked in topology, set theory, measure theory and complex analysis.
Question : What was the date of death for L. E. J. Brouwer?

SOLUTION: 2 December 1966

PROBLEM: Context : ISO 3166-2:KN is the entry for Saint Kitts and Nevis in ISO 3166-2, part of the ISO 3166 standard published by the International Organization for Standardization (ISO), which defines codes for the names of the principal subdivisions (e.g., provinces or states) of all countries coded in ISO 3166-1.
Question : Who set the standards for ISO 3166-2:KN?

SOLUTION: International Organization for Standardization

PROBLEM: Context : Cargolux Flight 7933 was a cargo flight which was involved in an accident on 21 January 2010 in which it landed on a vehicle that was on an active runway.
Question : On what date did Cargolux Flight 7933 take place?

SOLUTION:
21 January 2010