52041
The school was built and named in 1957 to commemorate Ralph Allen ( 1693-1764 ) .
 person: Ralph Allen
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: Ralph Allen 
Answer:
 person: Ralph Allen