1739
Furthermore , the induction of cytochrome P - 450 1A1 observed in the cormorant indicates that the Ah receptor - mediated process , by which TCDD and related chemicals exert many of their toxicities , has been activated .
 GENE: cytochrome P - 450 1A1; GENE: Ah receptor
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: cytochrome P - 450 1A1; GENE: Ah receptor