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Nikkomycin Z , a chitin synthase inhibitor is under clinical development .
 Chemical: Nikkomycin Z
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: Nikkomycin Z 
Answer:
 Chemical: Nikkomycin Z