12419
Based on known heterocyclic topoisomerase II inhibitors and anticancer agents , various indenoindolone derivatives were predicted as potential topoisomerase II - inhibiting anticancer agents .
 Chemical: indenoindolone
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: indenoindolone