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Silencing of PXR by RNAi demonstrated necessity of PXR in mediating chrysin ' s ability to induce xenobiotic detoxification genes and NF - kappa B inactivation .
 Chemical: chrysin
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: chrysin