13152
By depositing 50 nm thick layers of Zn interleaved between 1 mu m thick Se layers , a controlled breakup of the Zn sheet is achieved , thereby enabling a complete and controlled chemical reaction .
 Chemical: Zn; Chemical: Se; Chemical: Zn
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: Zn; Chemical: Se; Chemical: Zn