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Aerosolized sodium nitrite has thus been shown by these experiments to have promise as a better alternative to organic nitrites for development as an inhaled cyanide antidote .
 Chemical: sodium nitrite; Chemical: nitrites; Chemical: cyanide
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: sodium nitrite; Chemical: nitrites; Chemical: cyanide