Task: Question Answering
Input (English): 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: what should  be investigated?
Output (English): whether former Attorney General Alberto Gonzales and other officials involved in the firings of nine U.S. attorneys broke the law .