15564
Both BPA and DES ( 10 - 50 mu M ) caused a significant activation of the CYP3A4 promoter via the PXR in the DPX2 human hepatoma cell line .
 Chemical: BPA; Chemical: DES
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: BPA, DES 
Answer:
 Chemical: BPA; Chemical: DES