14107
Quantitative purity - activity relationships of natural products : the case of anti - tuberculosis active triterpenes from Oplopanax horridus .
 Chemical: triterpenes
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: triterpenes 
Answer:
 Chemical: triterpenes