Task: Question Answering
Input (English): Passage: The loss of industrial and working-class jobs in the city has resulted in high rates of poverty and associated problems. From 2000 to 2009, the city's estimated median household income fell from $29,526 to $26,098. As of 2010[update] the mean income of Detroit is below the overall U.S. average by several thousand dollars. Of every three Detroit residents, one lives in poverty. Luke Bergmann, author of Getting Ghost: Two Young Lives and the Struggle for the Soul of an American City, said in 2010, "Detroit is now one of the poorest big cities in the country." Question: Who said that Detroit is one of the poorest big cities in the country?
Output (English): Luke Bergmann