10671
Cell viability decreased at the higher concentrations of the Cu salts and CuO was more toxic compared to CuSO4 .
 Chemical: Cu salts; Chemical: CuO; Chemical: CuSO4
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: Cu salts, CuO, CuSO4 
Answer:
 Chemical: Cu salts; Chemical: CuO; Chemical: CuSO4