4651
The other was disinfection without applying a potential , but with US irradiation in the presence of TiO ( 2 ) ( sonocatalytic disinfection ) .
 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 )