4509
Absolute quantitation of stevioside and rebaudioside A in commercial standards by quantitative NMR .
 Chemical: stevioside; Chemical: rebaudioside A
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: stevioside, rebaudioside A 
Answer:
 Chemical: stevioside; Chemical: rebaudioside A