instruction:
In this task, you are given a sentence and question which can be answered using the sentence. Your task is to answer the question using the information from the sentence. The answer to the question is unique and it is a continuous text span from the sentence.
question:
Sentence: Official retirement took place at Fort Knox , on 17 October 1992 . 
 Question: what   took something?
answer:
Official retirement


question:
Sentence: Nash was also involved in North Carolina politics , representing Hillsborough on several occasions in the colonial North Carolina General Assembly . 
 Question: who   represented something?
answer:
Nash


question:
Sentence: Following the report , Attorney General Michael Mukasey appointed a special prosecutor to investigate whether former Attorney General Alberto Gonzales and other officials involved in the firings of nine U.S. attorneys broke the law . 
 Question: when was someone appointed?
answer:

Following the report