27611
Concerns have been raised that diacetyl ( DA ) might be a respiratory sensitizer based on its LUMO energy similar to that of the respiratory allergen toluene - 2 , 4 - diisocyanate ( TDI ) and results of a local lymph node assay ( LLNA ) that reported an EC3 of 1 . 9 % .
 Chemical: diacetyl; Chemical: toluene - 2 , 4 - diisocyanate; Chemical: TDI
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
 Entities: diacetyl, toluene - 2 , 4 - diisocyanate, TDI 
Answer:
 Chemical: diacetyl; Chemical: toluene - 2 , 4 - diisocyanate; Chemical: TDI