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Antimicrobial peptides ( AMPs ) are components of the innate immune response that represent desirable alternatives to conventional pharmaceuticals , as they have a fast mode of action , a low likelihood of resistance development and can act in conjunction with existing drug regimens .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
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