27715
From the 3 ( rd ) to the 9 ( th ) postnatal day ( PN ) , Swiss mice were subcutaneously injected with methamidophos ( 1 mg / kg ) .
 Chemical: methamidophos
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: methamidophos