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Furthermore , the ability of SUN to increase luciferase reporter gene expression suggests an aryl hydrocarbon receptor ( AhR ) - dependent transcriptional control and excludes the possibility of any posttranscriptional mechanisms .
 Chemical: SUN; Chemical: aryl hydrocarbon
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: SUN; Chemical: aryl hydrocarbon