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Additionally , our spectromicroscopy method permits the determination of the density distribution of TiO ( 2 ) in single carrier particles .
 Chemical: TiO ( 2 )
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: TiO ( 2 )