Question: Which hospital can house more patients,  St. Elizabeths Hospital or the Psychiatric Institute of Washington?
Related documents: [0]  [DOC] St. Elizabeths Hospital opened in 1855 as the first federally operated psychiatric hospital in the United States. Housing over 8,000 patients at its peak in the 1950s, the hospital at one point had a fully functioning medical-surgical unit, a school of nursing, and accredited internships and psychiatric residencies. Its campus was designated a National Historic Landmark in 1990. [END] 
[1]  [DOC] The Psychiatric Institute of Washington (PIW) is an acute (104 bed) psychiatric hospital in Washington, D.C. Opened in 1967, PIW is a short-term, private hospital. It offers behavioral healthcare to patients suffering from mental and addictive illnesses, including children, adolescents, adults and the elderly. Services offered by PIW include inpatient, partial and intensive outpatient hospitalization, and group treatment programs for substance abuse and addiction. [END] 
Answer: 
St. Elizabeths Hospital
St. Elizabeths Hospital