22553
Samples over the whole range of composition , including bare CeO2 and ZrO2 , were fabricated by templating strategies using the large diblock copolymer KLE as the structure - directing agent .
 Chemical: CeO2; Chemical: ZrO2; Chemical: KLE
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: CeO2; Chemical: ZrO2; Chemical: KLE