20551
Two novel saponins of 20 , 26 - epoxy derivatives of pseudojujubogenin from the seeds of Hovenia trichocarpa .
 Chemical: saponins; Chemical: 20 , 26 - epoxy; Chemical: pseudojujubogenin
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: saponins; Chemical: 20 , 26 - epoxy; Chemical: pseudojujubogenin