16549
Activity - guided fractionation of this extract which showed potent antiplasmodial activity resulted in the isolation of a labdane diterpenoid identified as otostegindiol .
 Chemical: labdane diterpenoid; Chemical: otostegindiol
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: labdane diterpenoid; Chemical: otostegindiol