All six of the W's would quickly be assigned a job. Inmates have pretty much the same jobs we in the general public have but they're highly supervised (they're basically not even allowed to have a screwdriver unless under direct supervision). If you consider that a prison is basically a town of 2,000 people (more or less), it needs people to keep it running, the same as a small town does. The inmates have jobs like carpenters, janitors, cooks, line servers, dish washers, plumbers, painters, electricians, gardeners, lawn care, maintenance, library, recreation area, laundry, commissary ("grocery store") and most anything else we do on the outside including (in some prisons) small engine repair and automotive mechanics. Some inmates are even trained in bio-hazard cleanup to take care of blood spills. The corrections officers, of course, would be the city cops.