13181
Separation and structure elucidation of a new homoflavanol derivative from Pteridium aquilinum ( L . ) Kuhn .
 Chemical: homoflavanol
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: homoflavanol 
Answer:
 Chemical: homoflavanol