11073
We investigated the influence of maternal airway exposure to nanoparticulate titanium dioxide ( TiO2 , UV - Titan ) and carbon black ( CB , Printex90 ) , on male reproductive function in the two following generations .
 Chemical: titanium dioxide; Chemical: TiO2; Chemical: carbon black; Chemical: Printex90
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: TiO2; Chemical: carbon black; Chemical: Printex90