23652
We hypothesized that diisocyanate ( DI ) exposure could modify gene promoter regions regulating transcription of cytokine mediators and thereby influence expression of DA .
 Chemical: diisocyanate
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: diisocyanate