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The MTT assay confirmed that myricetin had the strongest inhibitory effect on human prostate cancer cell line PC - 3 , myricitrin was second , and quercitrin was the weakest .
 Chemical: MTT; Chemical: myricetin; Chemical: myricitrin; Chemical: quercitrin
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: MTT; Chemical: myricetin; Chemical: myricitrin; Chemical: quercitrin