24028
A diazen - 1 - ium - 1 , 2 - diolate analog of 7 - azabenzobicyclo [ 2 . 2 . 1 ] heptane : Synthesis , nitric oxide and nitroxyl release , in vitro hemodynamic , and anti - hypertensive studies .
 Chemical: diazen - 1 - ium - 1 , 2 - diolate; Chemical: 7 - azabenzobicyclo [ 2 . 2 . 1 ] heptane; Chemical: nitric oxide; Chemical: nitroxyl
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: diazen - 1 - ium - 1 , 2 - diolate; Chemical: 7 - azabenzobicyclo [ 2 . 2 . 1 ] heptane; Chemical: nitric oxide; Chemical: nitroxyl