22201
Sister chromatid exchange has also been observed more frequently in B51 ( + ) Behçet 's disease .
 location: B51; person: Behçet
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: B51, Behçet 
Answer:
 location: B51; person: Behçet