1415
John Russell Taylor ( first contributed in 1959 ; continued for much of the 1960s and into the 1970s )
 person: John Russell Taylor
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: John Russell Taylor 
Answer:
 person: John Russell Taylor