15008
All intermediates for the secondary hydroxylamine pathway were detected but the primary N - hydroxylamine intermediate of the primary hydroxylamine pathway was not .
 Chemical: secondary hydroxylamine; Chemical: N; Chemical: hydroxylamine; Chemical: primary hydroxylamine
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: secondary hydroxylamine; Chemical: N; Chemical: hydroxylamine; Chemical: primary hydroxylamine