7020
In vivo antimutagenesis studies were performed against urinary mutagens induced by NOR ( 70 mg / kg ) or NLX ( 100 mg / kg ) in CD1 mice .
 Chemical: NOR; Chemical: NLX
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: NOR; Chemical: NLX