7026
Vitamin B12 ( 4 mg / kg ) reduced urinary mutagens of NOR or NLX ( P < 0 . 02 ) .
 Chemical: Vitamin B12; 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: Vitamin B12; Chemical: NOR; Chemical: NLX