7018
Antimutagenic evaluation of vitamins B1 , B6 and B12 in vitro and in vivo , with the Ames test .
 Chemical: vitamins B1 , B6 and B12
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: vitamins B1 , B6 and B12