23661
DNA Adduct Formation of 2 - Amino - 9H - pyrido [ 2 , 3 - b ] indole and 2 - Amino - 3 , 4 - dimethylimidazo [ 4 , 5 - f ] quinoline in Mouse Liver and Extrahepatic Tissues During a Subchronic Feeding Study .
 Chemical: 2 - Amino - 9H - pyrido [ 2 , 3 - b ] indole; Chemical: 2 - Amino - 3 , 4 - dimethylimidazo [ 4 , 5 - f ] quinoline
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: 2 - Amino - 9H - pyrido [ 2 , 3 - b ] indole; Chemical: 2 - Amino - 3 , 4 - dimethylimidazo [ 4 , 5 - f ] quinoline