64
Treatment was comprised of VNB , 25 mg / m ( 2 ) , plus GEM , 1000 mg / m ( 2 ) , both on Days 1 , 8 , and 15 every 28 days .
 Chemical: VNB; Chemical: GEM
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
 Entities: VNB, GEM 
Answer:
 Chemical: VNB; Chemical: GEM