Task: Question Answering
Input (English): Passage: As of the 2010 census, there were 579,999 people, 230,233 households, and 144,120 families residing in the city. The population density was 956.4 inhabitants per square mile (321.9/km²). There were 256,930 housing units at an average density of 375.9 per square mile (145.1/km²). Question: How many housing units were there for the 2010 census?
Output (English): 256,930