7345
The radiolytic oxidation of Co ( II ) to Co ( III ) was completed in 100 min and the chemical composition of the final particles was identified as Co ( 3 ) O ( 4 ) by XPS , Raman and UV - Vis spectroscopy .
 Chemical: Co ( II ); Chemical: Co ( III ); Chemical: Co ( 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: Co ( II ); Chemical: Co ( III ); Chemical: Co ( 3 ) O ( 4 )