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H - TiO ( 2 ) @ MnO ( 2 ) / / H - TiO ( 2 ) @ C core - shell nanowires for high performance and flexible asymmetric supercapacitors .
 Chemical: H; Chemical: TiO ( 2 ); Chemical: MnO ( 2 ); Chemical: H; Chemical: TiO ( 2 ); Chemical: C
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: H; Chemical: TiO ( 2 ); Chemical: MnO ( 2 ); Chemical: H; Chemical: TiO ( 2 ); Chemical: C