20272
The occurrence level of AF B1 was however high ( 93 . 75 - 94 . 45 % ) and was more pronounced in Ogun East Senatorial district ( 94 . 45 % ) .
 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