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These results demonstrate that the spirolactone - type diterpenoid derivatives of oridonin have optimized growth inhibitory activity against cancer cells and interesting apoptosis - inducing ability .
 Chemical: spirolactone; Chemical: diterpenoid; Chemical: oridonin
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: spirolactone; Chemical: diterpenoid; Chemical: oridonin