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Amino acid sequence of the ligand - binding domain of the aryl hydrocarbon receptor 1 predicts sensitivity of wild birds to effects of dioxin - like compounds .
 Chemical: Amino acid; Chemical: aryl hydrocarbon; Chemical: dioxin
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: Amino acid; Chemical: aryl hydrocarbon; Chemical: dioxin