275268
History Originally known as The Stotfold Three Counties Asylum , building of the hospital commenced in 1856 on a site between Letchworth , Arlesey and Stotfold .
 location: Stotfold; location: Letchworth; location: Arlesey; location: Stotfold
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Stotfold, Letchworth, Arlesey, Stotfold 
Answer:
 location: Stotfold; location: Letchworth; location: Arlesey; location: Stotfold