22898
Avermectin ( AVM ) is a macrocyclic lactone agent widely used as a nematicide , acaricide and insecticide in veterinary medicine and plant protection .
 Chemical: Avermectin; Chemical: AVM; Chemical: lactone
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: Avermectin; Chemical: AVM; Chemical: lactone