instruction:
Generate a correct and concise answer for the question based on the words in the context.
question:
Context : The 2007 Balad aircraft crash was a 9 January 2007 airplane incident involving an Antonov An-26 airliner, which crashed while attempting to land at the Joint Base Balad in Balad, Iraq, which was at that time operated by the United States Air Force.
Question : On what date did 2007 Balad aircraft crash occur?
answer:
9 January 2007

question:
Context : Outwitting Trolls is a murder mystery written by William G. Tapply that takes place in Boston.
Question : Which place is Outwitting Trolls in?
answer:
Boston

question:
Context : ISO 3166-2:AS is the entry for American Samoa 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:AS?
answer:
International Organization for Standardization