13086
He was one of the three major figures to develop the mathematical theory of population genetics , along with Ronald Fisher and Sewall Wright .
 person: Ronald Fisher; person: Sewall Wright
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: Ronald Fisher, Sewall Wright 
Answer:
 person: Ronald Fisher; person: Sewall Wright