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Definite , although limited , antineoplastic activity is observed in patients with well - defined platinum - and paclitaxel - refractory ovarian cancer .
 Chemical: platinum; Chemical: paclitaxel; Disease: ovarian cancer
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: platinum; Chemical: paclitaxel; Disease: ovarian cancer