16157
Tetracyclic diterpenoids with isomerized isospongian skeleton and labdane diterpenoids from the fruits of Amomum kravanh .
 Chemical: Tetracyclic diterpenoids; Chemical: isospongian; Chemical: labdane diterpenoids
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: Tetracyclic diterpenoids; Chemical: isospongian; Chemical: labdane diterpenoids