5630
In the 1980 s , Alexander Nove argued that the calculations would take millions of years even with the best computers .
 person: Alexander Nove
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: Alexander Nove 
Answer:
 person: Alexander Nove