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Four days after carboplatin treatment , tumors ( DS - sarcoma of the rat ) were implanted s . c . onto the hind food dorsum .
 Chemical: carboplatin; Disease: tumors; Disease: sarcoma
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Disease, Chemical 
Text: {0} 
Answer:
 Chemical: carboplatin; Disease: tumors; Disease: sarcoma