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A comparison of the constituents in the nine commercial products of Dang - shen showed that compounds codonopyrrolidum A , B and codonoside A only exist in C . tangshen , but not in C . pilosula var . modesta and C . pilosula .
 Chemical: codonopyrrolidum A , B; Chemical: codonoside A
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: codonopyrrolidum A , B; Chemical: codonoside A