29436
Enhanced lithium storage in Fe2O3 - SnO2 - C nanocomposite anode with a breathable structure .
 Chemical: lithium; Chemical: Fe2O3; Chemical: SnO2; Chemical: C
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: lithium, Fe2O3, SnO2, C 
Answer:
 Chemical: lithium; Chemical: Fe2O3; Chemical: SnO2; Chemical: C