20152
Furthermore , BEAS - 2B and A549 cells directly treated with crotonaldehyde induced increase in IL - 8 production .
 Chemical: crotonaldehyde
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: crotonaldehyde