4059
Quantitative analysis determines that CXCL12 concentrations above 9 . 0 nM are above the minimum activation threshold , while concentrations below 14 . 7 nM are below the saturation threshold .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities:  
Answer:
 None