4653
This synergistically enhanced inactivation rate of E . coli cells was attributable to effective reaction of the sonocatalytically generated OH radicals with E . coli cells at the surface of the TiO ( 2 ) anode , which resulted from the electroadsorption of E . coli cells toward the TiO ( 2 ) anode .
 Chemical: OH; Chemical: TiO ( 2 ); 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: OH; Chemical: TiO ( 2 ); Chemical: TiO ( 2 )