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After 48 h , the Na body content was significantly reduced by AgNO3 exposure , but the Ca body content was significantly increased under AgNO3 and AgNP exposures , respectively .
 Chemical: Na; Chemical: AgNO3; Chemical: Ca; Chemical: AgNO3
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: Na; Chemical: AgNO3; Chemical: Ca; Chemical: AgNO3