17998
Cytotoxic and apoptosis - inducing activities of steviol and isosteviol derivatives against human cancer cell lines .
 Chemical: steviol; Chemical: isosteviol
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: steviol; Chemical: isosteviol