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Using a range of in vitro acetylphenylhydrazine incubations , we validated a field - adapted technique against laboratory wet - mounts and verified the stability of this technique for one month following preparation .
 Chemical: acetylphenylhydrazine
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: acetylphenylhydrazine