13518
beta - ZOL not only more strongly reduced the viability of cells than did alpha - ZOL , but it also induced cell death mainly by apoptosis rather than necrosis .
 Chemical: beta - ZOL; Chemical: alpha - ZOL
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: beta - ZOL; Chemical: alpha - ZOL