1756
The sensitivity of avian species to the toxic effects of dioxin - like compounds ( DLCs ) varies up to 1000 - fold among species , and this variability has been associated with interspecies differences in aryl hydrocarbon receptor 1 ligand - binding domain ( AHR1 LBD ) sequence .
 Chemical: dioxin; 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: dioxin; Chemical: aryl hydrocarbon