4481
The concentrations of As in oyster soft tissue fluctuated between 5 . 44 and 9 . 56 mu g / g for rainy season and 6 . 46 and 8 . 33 mu g / g for dry season ( dry weight ) in C . gigas .
 Chemical: As
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: As