15692
Three new 3 , 6 - disubstituted alpha - pyrones , nocapyrones H - J ( 1 - 3 ) , were isolated from the marine actinomycete Nocardiopsis sp .
 Chemical: 3 , 6 - disubstituted alpha - pyrones; Chemical: nocapyrones H - J
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: 3 , 6 - disubstituted alpha - pyrones; Chemical: nocapyrones H - J