16806
Also , the rate constants of CTM reactions calculated using M06 - 2X are in good agreement with those estimated from polymer sample measurements using macroscopic mechanistic models .
 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