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Such 3D Fe3 O4 / graphene foams exhibit enhanced lithium storage with excellent cycling performance and rate capability .
 Chemical: Fe3 O4; Chemical: graphene; Chemical: lithium
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: Fe3 O4; Chemical: graphene; Chemical: lithium