6882
The SERS enhancement factor for AuAg bimetallic NPs shows an enhancement factor of about 5 . 7 x 10 ( 5 ) with respect to the flat AuAg surface .
 Chemical: AuAg; Chemical: AuAg
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: AuAg, AuAg 
Answer:
 Chemical: AuAg; Chemical: AuAg