20484
The highest values were obtained in Spanish samples of flour , as an example toasted corn , called gofio that was contaminated with 1201 . 7 and 1010 . 5 mu gkg ( - 1 ) of FB1 and FB2 , respectively .
 FB1, FB2
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 FB1, FB2