23651
Risk factors have not been identified that determine susceptibility for development of diisocyanate - induced occupational asthma ( DA ) .
 Chemical: diisocyanate
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: diisocyanate 
Answer:
 Chemical: diisocyanate