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Bis ( 12 ) - hupyridone ( B12H ) , derived from the Chinese medicinal component huperzine A , was originally designed as a novel acetylcholinesterase ( AChE ) inhibitor .
 Chemical: Bis ( 12 ) - hupyridone; Chemical: B12H; Chemical: huperzine A
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: Bis ( 12 ) - hupyridone; Chemical: B12H; Chemical: huperzine A