7584
Optical pumping of a single electron spin bound to a fluorine donor in a ZnSe nanostructure .
 Chemical: fluorine; Chemical: ZnSe
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: fluorine, ZnSe 
Answer:
 Chemical: fluorine; Chemical: ZnSe