24029
1 - ( 7 - Azabenzobicyclo [ 2 . 2 . 1 ] heptane ) diazen - 1 - ium - 1 , 2 - diolate ( 16 ) was designed with the expectation that it would act as a dual nitric oxide ( NO ) and nitroxyl ( HNO ) donor that is not carcinogenic or genotoxic .
 Chemical: 1 - ( 7 - Azabenzobicyclo [ 2 . 2 . 1 ] heptane ) diazen - 1 - ium - 1 , 2 - diolate; Chemical: nitric oxide; Chemical: NO; Chemical: nitroxyl; Chemical: HNO
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: 1 - ( 7 - Azabenzobicyclo [ 2 . 2 . 1 ] heptane ) diazen - 1 - ium - 1 , 2 - diolate; Chemical: nitric oxide; Chemical: NO; Chemical: nitroxyl; Chemical: HNO