2057
Twenty - four - hour acrolein instillation increased the levels of nitrite / nitrate and interleukin - 6 ( IL - 6 ) in the urinary bladder .
 Chemical: acrolein; Chemical: nitrite; Chemical: nitrate
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: acrolein; Chemical: nitrite; Chemical: nitrate