60874
It was introduced by the mathematician Alonzo Church in the 1930 s as part of his research into the foundations of mathematics .
 person: Alonzo Church
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: Alonzo Church 
Answer:
 person: Alonzo Church