26303
HNNO ( + ) is found to be 2 - 4 times less abundant than NNOH ( + ) under a range of experimental conditions , as might be expected because this metastable isomer is known to be only ~ 6 kcal mol ( - 1 ) less stable than ground - state NNOH ( + ) from kinetic measurements by Ferguson and co - workers .
 Chemical: HNNO ( + ); Chemical: NNOH ( + ); Chemical: NNOH ( + )
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: HNNO ( + ); Chemical: NNOH ( + ); Chemical: NNOH ( + )