18143
Ag , Cd , and Zn produce the highest photoactivity Bi - M - Cu oxides with a 200 - 400 % improvement over CuBi2O4 .
 Chemical: Ag; Chemical: Cd; Chemical: Zn; Chemical: Bi; Chemical: Cu; Chemical: oxides; Chemical: CuBi2O4
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: Ag; Chemical: Cd; Chemical: Zn; Chemical: Bi; Chemical: Cu; Chemical: oxides; Chemical: CuBi2O4