2786
Songaricalarins A - E , cytotoxic oplopane sesquiterpenes from Ligularia songarica .
 Chemical: Songaricalarins A - E; Chemical: oplopane sesquiterpenes
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: Songaricalarins A - E; Chemical: oplopane sesquiterpenes