3438
There are limited data on the sub - lethal physiological effects of titanium dioxide nanoparticles ( TiO ( 2 ) NPs ) in adult fishes , and the consequences of TiO ( 2 ) NP exposure on reproductive success are also unclear .
 Chemical: titanium dioxide; 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: titanium dioxide; Chemical: TiO ( 2 ); Chemical: TiO ( 2 )