5911
A concentration of 12 . 5 ppm SO2 induced a decrease from baseline values of approximately 80 % in mean MCA and of roughly 70 % in mean CBF .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities:  
Answer:
 None