1769
Rheological investments showed that the cooling step ( reduce the temperature from 95 to 25 degrees C at a speed of 2 degrees C / min ) was more important for the HUS GISG network formation while the heat preservation step ( keep temperature at 95 for 20 min ) was more important for the untreated GISG .
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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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