9188
Both NaZn 1 3 - and MgZn 2 - type CoFe 2 O 4 - - Fe 3 O 4 binary nanocrystal superlattices have been formed by the liquid - air interfacial assembly approach .
 Chemical: NaZn 1 3; Chemical: MgZn 2; Chemical: CoFe 2 O 4; Chemical: Fe 3 O 4
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: NaZn 1 3; Chemical: MgZn 2; Chemical: CoFe 2 O 4; Chemical: Fe 3 O 4