20271
The level of contamination of the foods by AF B1 was low ( 0 . 16 - 0 . 33 mu g / kg ) and differed significantly ( p < 0 . 05 ) across the state but did not exceed the EU limit of 2 mu g / kg .
 Chemical: AF B1
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: AF B1