21285
The plant anti - inflammatory action was assessed by its capability in inhibiting cell migration , enzymatic activity of myeloperoxidase ( MPO ) and production of nitrite / nitrate or edema .
 Chemical: nitrite; Chemical: nitrate
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: nitrite; Chemical: nitrate