8048
Poly ( ethylene glycol ) - block - poly ( epsilon - caprolactone ) micelles for combination drug delivery : evaluation of paclitaxel , cyclopamine and gossypol in intraperitoneal xenograft models of ovarian cancer .
 Chemical: Poly ( ethylene glycol ) - block - poly ( epsilon - caprolactone ); Chemical: paclitaxel; Chemical: cyclopamine; Chemical: gossypol
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: Poly ( ethylene glycol ) - block - poly ( epsilon - caprolactone ); Chemical: paclitaxel; Chemical: cyclopamine; Chemical: gossypol