25618
We also included in this study two BPA analogs , bisphenol AF ( BPAF ) and bisphenol S ( BPS ) .
 Chemical: BPA; Chemical: bisphenol AF; Chemical: BPAF; Chemical: bisphenol S; Chemical: BPS
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, bisphenol AF, BPAF, bisphenol S, BPS 
Answer:
 Chemical: BPA; Chemical: bisphenol AF; Chemical: BPAF; Chemical: bisphenol S; Chemical: BPS