5803
Both SOD and CAT activities showed similar associations with varied concentrations of surfactants : SOD was significantly promoted by 550 to 1 , 800 mg / L SDBS , 0 . 7 to 1 . 3 mg / L CTAC , and mixtures at levels 2 to 4 ; CAT was clearly promoted by 900 mg / L SDBS , 0 . 4 to 1 . 3 mg / L CTAC , and mixtures at levels 2 to 4 .
 Chemical: SDBS; Chemical: CTAC; Chemical: SDBS; Chemical: CTAC
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: SDBS; Chemical: CTAC; Chemical: SDBS; Chemical: CTAC