1518
For the second group , RVT was coadministered with BaP at a dose of 45 mu g / kg .
 Chemical: RVT; Chemical: BaP
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: RVT, BaP 
Answer:
 Chemical: RVT; Chemical: BaP