30437
Nevertheless , 18 beta - GA showed a potent anti - HRSV activity .
 Chemical: 18 beta - GA
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: 18 beta - GA 
Answer:
 Chemical: 18 beta - GA