18023
Following an appropriate aqueous solution preparation of magnesium acetate ( MgAc ) and zinc acetate ( ZnAc ) with poly ( vinyl alcohol ) ( PVA ) , electrospinning is performed and then as - spun nanofibers are calcined in an air atmosphere at 600 degrees C for 3 h .
 Chemical: magnesium acetate; Chemical: MgAc; Chemical: zinc acetate; Chemical: ZnAc; Chemical: poly ( vinyl alcohol ); Chemical: PVA
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: magnesium acetate; Chemical: MgAc; Chemical: zinc acetate; Chemical: ZnAc; Chemical: poly ( vinyl alcohol ); Chemical: PVA