10925
Berlex also charges that Avonex is so similar to its MS drug , Betaseron , that it is a patent infringement .
 else: Betaseron; organization: Berlex; else: Avonex
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, else, organization, person 
Text: {0} 
 Entities: Betaseron, Berlex, Avonex 
Answer:
 else: Betaseron; organization: Berlex; else: Avonex