72588
In 1906 Arnold Theiler showed that bluetongue was caused by a filterable agent .
 person: Arnold Theiler
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: Arnold Theiler 
Answer:
 person: Arnold Theiler