9057
The initial uptake coefficient was found to be independent of temperature and irradiation conditions and to decrease with relative humidity : gamma ( 0 ) = 0 . 2 / ( 1 + RH ( 0 . 36 ) ) ( calculated using geometric surface area , with 30 % estimated conservative uncertainty ) .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
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