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Picrosides I and II are the active chemical constituents , present in the roots and rhizomes of Picrorhiza kurroa Royle ( family : Scrophulariaceae ) .
 Chemical: Picrosides I and II
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: Picrosides I and II