instruction:
Generate a correct and concise answer for the question based on the words in the context.
question:
Context : After twelve years of marriage, Hannah Van Buren contracted tuberculosis and died on February 5, 1819, at the age of thirty-five. 
Question : Which medical condition does Hannah Van Buren suffer from?
answer:
tuberculosis


question:
Context : ISO 3166-2:ZA is the entry for South Africa 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:ZA?
answer:
International Organization for Standardization


question:
Context : The Madonna Litta is a late 15th-century painting, traditionally attributed to Leonardo da Vinci, in the Hermitage Museum, Saint Petersburg. 
Question : What is the name of the place where Madonna Litta can be found?
answer:

Hermitage Museum