8626
In this condition , the conductivity values follow VTF behavior , which suggests that the proton migration occurs via proton exchange processes between delocalization bodies ( DBs ) that are facilitated by the dynamics of the host polymer .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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