11074
Time - mated C57BL / 6J mice were exposed by inhalation to UV - Titan , or by intratracheal instillation with Printex90 .
 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: Printex90