Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: More than 30 "run-down and poorly-located" prisons should be replaced by 12 "super-jails" each with thousands of inmates, a report has said.

Super-jails should replace run-down prisons - Policy Exchange