4689
This paper investigates the fate of Brilliant Blue ( BB ) and Patent Blue ( PB ) after 24 - h in vitro diffusion , firstly through intact and secondly through shaven pig - ear skin ( stored by freezing ) from four leave - on cosmetics under in - use conditions .
 Chemical: Brilliant Blue; Chemical: Patent Blue
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: Brilliant Blue, Patent Blue 
Answer:
 Chemical: Brilliant Blue; Chemical: Patent Blue