22717
Platinum - containing camptothecins produced platinum - DNA adducts and topoisomerase I - mediated DNA damage with cleavage pattern and persistence similar to SN38 , the active principle of irinotecan .
 Chemical: Platinum; Chemical: camptothecins; Chemical: platinum; Chemical: SN38; Chemical: irinotecan
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: Platinum; Chemical: camptothecins; Chemical: platinum; Chemical: SN38; Chemical: irinotecan