9125
1 - Nitro - 2 - phenylethane is the first organic NO 2 - containing molecule isolated from plants .
 Chemical: 1 - Nitro - 2 - phenylethane; Chemical: NO 2
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: 1 - Nitro - 2 - phenylethane; Chemical: NO 2