2991
He died five years later while incarcerated in Walnut Street Prison in the city .
 location: Walnut Street Prison
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: Walnut Street Prison 
Answer:
 location: Walnut Street Prison